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Science Fair - Free Essay Examples and Topic Ideas

A science fair is an event where students showcase their scientific projects, experiments and investigations. This event aims to encourage students to explore and discover various scientific concepts and theories. It offers an opportunity for students to demonstrate their scientific knowledge, analytical skills and creativity. Science fair projects cover a wide range of scientific fields including biology, chemistry, physics, and earth science. The event can be held at school, community centers, and even online. Science fairs provide a fun and educational experience for both students and attendees.

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How to Write a Science Fair Project Report

Lab Reports and Research Essays

• Projects & Experiments
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• Physical Chemistry
• Medical Chemistry
• Chemistry In Everyday Life
• Famous Chemists
• Activities for Kids
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• Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
• B.A., Physics and Mathematics, Hastings College

Writing a science fair project report may seem like a challenging task, but it is not as difficult as it first appears. This is a format that you may use to write a science project report. If your project included animals, humans, hazardous materials, or regulated substances, you can attach an appendix that describes any special activities your project required. Also, some reports may benefit from additional sections, such as abstracts and bibliographies. You may find it helpful to fill out the science fair lab report template to prepare your report.

Important: Some science fairs have guidelines put forth by the science fair committee or an instructor. If your science fair has these guidelines, be sure to follow them.

• Title:  For a science fair, you probably want a catchy, clever title. Otherwise, try to make it an accurate description of the project. For example, I could entitle a project, "Determining Minimum NaCl Concentration That Can Be Tasted in Water." Avoid unnecessary words, while covering the essential purpose of the project. Whatever title you come up with, get it critiqued by friends, family, or teachers.
• Introduction and Purpose:  Sometimes this section is called "background." Whatever its name, this section introduces the topic of the project, notes any information already available, explains why you are interested in the project, and states the purpose of the project. If you are going to state references in your report, this is where most of the citations are likely to be, with the actual references listed at the end of the entire report in the form of a bibliography or reference section.
• The Hypothesis or Question:  Explicitly state your hypothesis or question.
• Materials and Methods:  List the materials you used in your project and describe the procedure that you used to perform the project. If you have a photo or diagram of your project, this is a good place to include it.
• Data and Results:  Data and results are not the same things. Some reports will require that they be in separate sections, so make sure you understand the difference between the concepts. Data refers to the actual numbers or other information you obtained in your project. Data can be presented in tables or charts, if appropriate. The results section is where the data is manipulated or the hypothesis is tested. Sometimes this analysis will yield tables, graphs, or charts, too. For example, a table listing the minimum concentration of salt that I can taste in water, with each line in the table being a separate test or trial, would be data. If I average the data or perform a statistical test of a null hypothesis , the information would be the results of the project.
• Conclusion:  The conclusion focuses on the hypothesis or question as it compares to the data and results. What was the answer to the question? Was the hypothesis supported (keep in mind a hypothesis cannot be proved, only disproved)? What did you find out from the experiment? Answer these questions first. Then, depending on your answers, you may wish to explain the ways in which the project might be improved or introduce new questions that have come up as a result of the project. This section is judged not only by what you were able to conclude but also by your recognition of areas where you could not draw valid conclusions based on your data.

Appearances Matter

Neatness counts, spelling counts, grammar counts. Take the time to make the report look nice. Pay attention to margins, avoid fonts that are difficult to read or are too small or too large, use clean paper, and make print the report cleanly on as good a printer or copier as you can.

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The Big List of Science Fair Project Ideas, Resources, and More

Options for every age, interest, and skill level!

Science fairs are a rite of passage and something many kids either dread or adore. Whatever the case, there’s no doubt these projects give students a chance to develop all sorts of skills: critical thinking, presentation and public speaking, research and writing, and so much more. Make this year’s fair the best one ever with this huge list of science fair project ideas for every kind of student.

Tips for Choosing a Science Fair Project

Source: @eriverselementary

With thousands of possible projects, it can be difficult to narrow down something that’s a good fit for every student. Try these tips to help them find the right science fair project ideas.

Match Your Project to Your Interests

This seems obvious, but it’s really helpful for kids who feel overwhelmed by all the choices. It’s also a good way to get reluctant learners more excited about science fair projects. Encourage students to think about what they love to do in their spare time. How can they turn that into a project?

For instance, kids who love sports might explore the most effective stretches for warming up, or methods for throwing a football farther and more accurately. Music lovers can learn how sound waves work, or discover the link between music and emotions. It’s all about starting with something you love.

Challenge Yourself, But Keep It Realistic

Science fair projects need to be something kids can complete by themselves or with adults in support roles only. If a student picks something that’s way beyond their skill level, chances are the parents will wind up doing most of it. That being said, the point of the project is to learn and grow. Aim to learn something new, whether it’s knowledge or skills, by setting measurable goals.

If You Want To Win, Be Innovative

For science fair contests with prizes, the more creative you can be, the better. Projects that address real-world problems with new and interesting solutions often catch the judges’ eye. Be sure to be thorough in your research, and be ready to answer questions about your methods and results. Scientists love asking questions!

Science Fair Project Ideas by Grade

Source: @delphiacademy

Finding an age-appropriate project is an excellent way to help kids succeed. These lists cover every age, pre-K to grade 12. Remember that many simple experiments and demos can become true projects by changing up the methodology to achieve better or different results.

• Preschool Science Experiments and Activities
• Kindergarten Science Projects, Activities, and Experiments
• 1st Grade Science Projects and Activities
• 2nd Grade Science Experiments and Projects
• 3rd Grade Science Projects and Activities
• 4th Grade Science Experiments, Activities, and Projects
• 5th Grade Science Projects and Experiments
• 6th Grade Science Experiments, Projects, and Activities
• 7th Grade Science Fair Projects and Classroom Experiments
• 8th Grade Science Fair Projects and Classroom Experiments
• High School Science Experiments for Labs and Science Fairs

Science Fair Project Ideas by Interest

Source: @project.learn.community

Since most projects can be tweaked to be suitable for any age, it’s best to urge kids to pick projects that really interest them. These roundups offer ideas for various interests in disciplines ranging from bio and chemistry to physics and environmental science.

• Anatomy Science Projects and Activities
• Animal Habitat Activities and Projects
• Balloon Science Experiments and Projects
• Climate Change Activities and Project Ideas
• Electricity Experiments and Science Projects
• Ocean Experiments, Projects, and Activities
• Plant Life Cycle Projects and Experiments
• Science Projects for Learning About Germs
• Space Science Experiments and Activities
• Volcano Science Experiments and Project Kits
• Weather Activities and Science Projects

STEM Challenge Science Fair Projects

Source: @qmsduncan

For students especially interested in physics or engineering, STEM challenges can lead to amazing science fair project ideas. Check out these lists for engaging challenges, and watch the learning grow.

• Kindergarten STEM Challenges for Little Learners
• 1st Grade STEM Challenges Kids Will Love
• 2nd Grade STEM Challenges To Encourage Creative Thinking
• 3rd Grade STEM Challenges for Scientific Learning
• 4th Grade STEM Challenges That Make Learning Fun
• 5th Grade STEM Challenges for Hands-On Exploration
• STEM Challenges That Use Ordinary Office Supplies

Engaging Reluctant Science Fair Participants

Source: @aubkov

Let’s face it: Not every kid gets excited about the idea of a science fair. But with the right science fair project ideas, you can draw in even the most reluctant learners. Try some of these options.

• Edible Science Projects You’ll Actually Want to Eat : There’s something about getting to eat your project that excites nearly every kid.
• Wet and Wild Outdoor Science Activities and Experiments : Get kids out of the classroom and let them make a mess outdoors. Perfect for kinesthetic learners!
• 60 Easy Science Experiments Using Materials You Already Have On Hand : While you always want kids to challenge themselves as they learn, that doesn’t mean their science fair project needs to be incredibly complicated. These simple activities with household materials help students learn too.
• 50 Ste m Activities To Help Kids Think Outside the Box : These fun, quick, hands-on projects are perfect for creative thinkers.

More Science Fair Resources

Choosing a project is just the first part of the process. Find more useful tips and project help here.

• Free Printable: Scientific Method Graphic Organizer
• An Easy Way To Create Science Fair Project Boards
• Free Bulletin Board Kit That Teaches Students to “Think Like an Inventor”

Want to talk to other science teachers about running a school science fair? Join the WeAreTeachers HELPLINE group on Facebook to exchange ideas and ask for advice!

Plus, the best science websites for middle and high school ..

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Teaching Resources & Guides > How to Teach Science Tips > Writing a Science Report  

Writing a Science Report

With science fair season coming up as well as many end of the year projects, students are often required to write a research paper or a report on their project. Use this guide to help you in the process from finding a topic to revising and editing your final paper.

Brainstorming Topics

Sometimes one of the largest barriers to writing a research paper is trying to figure out what to write about. Many times the topic is supplied by the teacher, or the curriculum tells what the student should research and write about. However, this is not always the case. Sometimes the student is given a very broad concept to write a research paper on, for example, water. Within the category of water, there are many topics and subtopics that would be appropriate. Topics about water can include anything from the three states of water, different water sources, minerals found in water, how water is used by living organisms, the water cycle, or how to find water in the desert. The point is that “water” is a very large topic and would be too broad to be adequately covered in a typical 3-5 page research paper.

When given a broad category to write about, it is important to narrow it down to a topic that is much more manageable. Sometimes research needs to be done in order to find the best topic to write about. (Look for searching tips in “Finding and Gathering Information.”) Listed below are some tips and guidelines for picking a suitable research topic:

• Pick a topic within the category that you find interesting. It makes it that much easier to research and write about a topic if it interests you.
• You may find while researching a topic that the details of the topic are very boring to you. If this is the case, and you have the option to do this, change your topic.
• Pick a topic that you are already familiar with and research further into that area to build on your current knowledge.
• When researching topics to do your paper on, look at how much information you are finding. If you are finding very little information on your topic or you are finding an overwhelming amount, you may need to rethink your topic.
• If permissible, always leave yourself open to changing your topic. While researching for topics, you may come across one that you find really interesting and can use just as well as the previous topics you were searching for.
• Most importantly, does your research topic fit the guidelines set forth by your teacher or curriculum?

Finding and Gathering Information

There are numerous resources out there to help you find information on the topic selected for your research paper. One of the first places to begin research is at your local library. Use the Dewey Decimal System or ask the librarian to help you find books related to your topic. There are also a variety of reference materials, such as encyclopedias, available at the library.

A relatively new reference resource has become available with the power of technology – the Internet. While the Internet allows the user to access a wealth of information that is often more up-to-date than printed materials such as books and encyclopedias, there are certainly drawbacks to using it. It can be hard to tell whether or not a site contains factual information or just someone’s opinion. A site can also be dangerous or inappropriate for students to use.

You may find that certain science concepts and science terminology are not easy to find in regular dictionaries and encyclopedias. A science dictionary or science encyclopedia can help you find more in-depth and relevant information for your science report. If your topic is very technical or specific, reference materials such as medical dictionaries and chemistry encyclopedias may also be good resources to use.

If you are writing a report for your science fair project, not only will you be finding information from published sources, you will also be generating your own data, results, and conclusions. Keep a journal that tracks and records your experiments and results. When writing your report, you can either write out your findings from your experiments or display them using graphs or charts .

*As you are gathering information, keep a working bibliography of where you found your sources. Look under “Citing Sources” for more information. This will save you a lot of time in the long run!

Organizing Information

Most people find it hard to just take all the information they have gathered from their research and write it out in paper form. It is hard to get a starting point and go from the beginning to the end. You probably have several ideas you know you want to put in your paper, but you may be having trouble deciding where these ideas should go. Organizing your information in a way where new thoughts can be added to a subtopic at any time is a great way to organize the information you have about your topic. Here are two of the more popular ways to organize information so it can be used in a research paper:

• Graphic organizers such as a web or mind map . Mind maps are basically stating the main topic of your paper, then branching off into as many subtopics as possible about the main topic. Enchanted Learning has a list of several different types of mind maps as well as information on how to use them and what topics fit best for each type of mind map and graphic organizer.
• Sub-Subtopic: Low temperatures and adequate amounts of snow are needed to form glaciers.
• Sub-Subtopic: Glaciers move large amounts of earth and debris.
• Sub-Subtopic: Two basic types of glaciers: valley and continental.
• Subtopic: Icebergs – large masses of ice floating on liquid water

Different Formats For Your Paper

Depending on your topic and your writing preference, the layout of your paper can greatly enhance how well the information on your topic is displayed.

1. Process . This method is used to explain how something is done or how it works by listing the steps of the process. For most science fair projects and science experiments, this is the best format. Reports for science fairs need the entire project written out from start to finish. Your report should include a title page, statement of purpose, hypothesis, materials and procedures, results and conclusions, discussion, and credits and bibliography. If applicable, graphs, tables, or charts should be included with the results portion of your report.

2. Cause and effect . This is another common science experiment research paper format. The basic premise is that because event X happened, event Y happened.

3. Specific to general . This method works best when trying to draw conclusions about how little topics and details are connected to support one main topic or idea.

4. Climatic order . Similar to the “specific to general” category, here details are listed in order from least important to most important.

5. General to specific . Works in a similar fashion as the method for organizing your information. The main topic or subtopic is stated first, followed by supporting details that give more information about the topic.

6. Compare and contrast . This method works best when you wish to show the similarities and/or differences between two or more topics. A block pattern is used when you first write about one topic and all its details and then write about the second topic and all its details. An alternating pattern can be used to describe a detail about the first topic and then compare that to the related detail of the second topic. The block pattern and alternating pattern can also be combined to make a format that better fits your research paper.

Citing Sources

When writing a research paper, you must cite your sources! Otherwise you are plagiarizing (claiming someone else’s ideas as your own) which can cause severe penalties from failing your research paper assignment in primary and secondary grades to failing the entire course (most colleges and universities have this policy). To help you avoid plagiarism, follow these simple steps:

• Find out what format for citing your paper your teacher or curriculum wishes you to use. One of the most widely used and widely accepted citation formats by scholars and schools is the Modern Language Association (MLA) format. We recommended that you do an Internet search for the most recent format of the citation style you will be using in your paper.
• Keep a working bibliography when researching your topic. Have a document in your computer files or a page in your notebook where you write down every source that you found and may use in your paper. (You probably will not use every resource you find, but it is much easier to delete unused sources later rather than try to find them four weeks down the road.) To make this process even easier, write the source down in the citation format that will be used in your paper. No matter what citation format you use, you should always write down title, author, publisher, published date, page numbers used, and if applicable, the volume and issue number.
• When collecting ideas and information from your sources, write the author’s last name at the end of the idea. When revising and formatting your paper, keep the author’s last name attached to the end of the idea, no matter where you move that idea. This way, you won’t have to go back and try to remember where the ideas in your paper came from.
• There are two ways to use the information in your paper: paraphrasing and quotes. The majority of your paper will be paraphrasing the information you found. Paraphrasing is basically restating the idea being used in your own words.   As a general rule of thumb, no more than two of the original words should be used in sequence when paraphrasing information, and similes should be used for as many of the words as possible in the original passage without changing the meaning of the main point. Sometimes, you may find something stated so well by the original author that it would be best to use the author’s original words in your paper. When using the author’s original words, use quotation marks only around the words being directly quoted and work the quote into the body of your paper so that it makes sense grammatically. Search the Internet for more rules on paraphrasing and quoting information.

Revising and Editing Your Paper

Revising your paper basically means you are fixing grammatical errors or changing the meaning of what you wrote. After you have written the rough draft of your paper, read through it again to make sure the ideas in your paper flow and are cohesive. You may need to add in information, delete extra information, use a thesaurus to find a better word to better express a concept, reword a sentence, or just make sure your ideas are stated in a logical and progressive order.

After revising your paper, go back and edit it, correcting the capitalization, punctuation, and spelling errors – the mechanics of writing. If you are not 100% positive a word is spelled correctly, look it up in a dictionary. Ask a parent or teacher for help on the proper usage of commas, hyphens, capitalization, and numbers. You may also be able to find the answers to these questions by doing an Internet search on writing mechanics or by checking you local library for a book on writing mechanics.

It is also always a good idea to have someone else read your paper. Because this person did not write the paper and is not familiar with the topic, he or she is more likely to catch mistakes or ideas that do not quite make sense. This person can also give you insights or suggestions on how to reword or format your paper to make it flow better or convey your ideas better.

More Information:

• Quick Science Fair Guide
• Science Fair Project Ideas

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121 Original Science Fair Project Ideas To Try In 2023

If you’re searching for the most interesting science fair project ideas on the Internet, you have arrived at the right place! We have just finished updating our list of fair project ideas for 2023. We now have 121 original topics in all of the most relevant areas of science.

And the good news is that you can use any one of our topics for free. No need to give us any credits; just pick a topic and start working on your project!

What Are Science Fair Projects And How Are They Graded?

So, what are science fair projects?

A science fair project is a project that is completed by students and that involves conducting an experiment to answer a scientific question.

Science fair projects are usually done as part of a school assignment or as part of a larger science competition (on a regional or national scale). You can choose from a wide range of topics, from biology and chemistry to physics and engineering.

Even though every professor has his own grading criteria, you can expect it to be something like this:

Scientific accuracy (20 points): The project accurately reflects scientific knowledge regarding the subject. Creativity (10 points): The project demonstrates originality in its approach to the investigation. Clarity (15 points): The project is well-organized and easy to understand. Evidence (15 points): The project provides clear and convincing evidence to support its conclusions. Methodology (15 points): The project uses a well-designed experimental approach. Analysis (15 points): The project analyzes the data in a meaningful way and draws appropriate conclusions. Presentation (10 points): The project is presented in a professional and visually appealing manner.

Now that you have an idea of how your project will get graded, you surely realize the importance of choosing the perfect topic for your project. The good news is that we have 121 great science fair ideas right here on this page.

Science Fair Projects Topic For 2023

Take a look at our latest science fair projects for 2023 and take your pick:

• Measure the and water-holding capacity of different types of soil
• Build a solar still to purify water
• Construct a wind turbine
• Build a model of a simple machine to demonstrate the transfer of energy
• Study the relationship between current, voltage, and resistance
• Construct a simple motor
• Study the behavior of sound waves
• Measure the permeability of different materials
• Construct a seismometer to study the propagation of seismic waves
• Investigate the effect of salt concentration on the freezing point of water

Best Science Fair Projects

Our writers and editors have managed to come up with the best science fair projects you can find. Take a look at some extraordinary ideas right here:

• Investigate the effect of caffeine on reaction time
• Test the effectiveness of different types of natural pesticides
• Investigate the effect of different colors of light on the growth of algae
• Measure the effect of different types of exercise on heart rate recovery
• The effect of different types of packaging materials on the shelf life of food
• The effect of various types of music on our mood
• Compare the effectiveness of 3 natural remedies for acne treatment

Intriguing Science Fair Topics

Looking for the most intriguing science fair topics? We have a list of topic ideas that we think your professor will love. Here they are:

• The effect of different types of water on the growth of crystals
• The effect of different types of soil on the growth of mushrooms
• The effect of different types of cooking oils on food flavor
• The effectiveness of natural dyes on fabric colorfastness
• The effect of light on the behavior of nocturnal animals
• The effect of different types of materials on clothing insulating
• The effect of soil additives on the yield of a specific crop

STEM Fair Projects

STEM (Science, Technology, Engineering, and Mathematics) fair projects are research projects conducted by students in these fields with the aim of demonstrating scientific principles and concepts. And we have just the topics you’ve been looking for:

• Investigate the effects of different types of fertilizers on plant growth
• Examine the factors that affect the rate of osmosis in plant cells
• Investigate the effectiveness of various insect repellents
• Design and build a robot that can navigate a maze
• Develop a mobile app that helps people learn a new language
• Develop a computer program that can recognize facial expressions
• Design and test a bridge that can withstand different types of loads
• Create a device that can remove microplastics from water
• Identify the factors that influence students’ academic performance
• Analyze the patterns of traffic flow in a city

Science Fair Projects About Biology

If you want to work on a project related to biology, you’re at the right place. Here are some awesome science projects about biology:

• The effects of different light spectrums on plant growth
• Investigating the role of bacteria in the fermentation of food
• An analysis of the effects of air pollution on plant growth
• The impact of different soil types on plant growth and development
• Investigating the role of plant hormones in the development of plants
• An analysis of the effects of different temperatures on bacteria
• The impact of different pH levels on the survival of yeast
• Investigating the role of photosynthesis in the growth a species of algae
• An analysis of the effects of different water sources on aquatic plants
• The impact of different amounts of light exposure on fungi

Easy Science Fair Projects

Don’t want to spend too much time working on the science fair project? No problem! All you have to do is choose one of these easy science fair projects:

• Which brand of popcorn pops the most kernels?
• How does the amount of sugar affect the growth of plants?
• Which type of paper airplane design flies the farthest?
• How does temperature affect the rate of mold growth on bread?
• How does the size of a parachute affect its descent time?
• How does the shape of an object affect its ability to float?
• What kind of music helps plants grow the best?
• What is the effect of soda on teeth?
• Which type of salt works best to melt ice?
• The link between the angle of a ramp and distance travelled?

Cool Science Fair Projects

We have some pretty cool science fair projects for students of all ages. Use any of these topics for free and get a top score on your project:

• Build a pendulum wave machine
• The relationship between magnetic field strength and distance
• Investigate the relationship between current, voltage and resistance
• A 3D printing project that prints objects with different shapes
• Investigate the relationship between wavelength and frequency
• Build a wind turbine to generate electricity and testing its efficiency
• Use mathematical models to explore the spread of a virus
• The relationship between water hardness and soap effectiveness.
• Testing natural fibers for water filtration.

Excellent Ideas For Science Project

Can’t come up with any excellent ideas for a science project? Choose one of ours and stop wasting your time:

• Develop an algorithm to predict the likelihood of developing a disease
• Create a website that uses machine learning
• Study the impact of pH levels on the growth of bacteria
• Design a water filtration system using natural materials
• Build a spectroscope to study the properties of light
• Investigate the relationship between air pressure and altitude
• Investigating the effect of temperature on the rate of seed germination.
• Testing the effect of different materials on sound insulation.

Science Fair Projects About Physics

Here are some 100% original science fair projects about physics that you can use right now for your project:

• Build a simple electric motor
• Build a ballistic pendulum to study the conservation of momentum
• Build a rocket
• Build a simple spectrophotometer to study the properties of light
• Investigate the relationship between weight and friction
• The effect of air resistance on the trajectory of a projectile
• The effect of temperature on the pressure of a gas
• An analysis of the force of gravity on objects of different mass
• The effect of different materials on the speed of sound
• An analysis of the energy transformation in a simple machine

Good Science Fair Project Ideas

Are you looking for some good science ideas? There are some ideas that should impress everyone. Here is what you can make to get a top score:

• Build a model of a river delta
• A reaction kinetics experiment to study the rate of chemical reactions.
• A study of the properties of different types of rocks and minerals
• Make a simulation of a market economy
• A cybersecurity experiment to test the vulnerability of computer systems
• Build a homemade battery
• An IoT project that uses microcontrollers to process data
• A study of the formation of geological features such as mountains
• An examination of the impact of government policies on the economy

Science Fair Experiments Ideas

Do you want to experiment with something cool? Here are some cool science fair experiments to try:

• Compare the effectiveness of natural and chemical insect repellents
• Investigate the relationship between exercise and heart rate
• Test the strength of different types of magnets
• Measure the effect of pH on the rate of corrosion of metals
• Compare the effectiveness of different types of water filters
• Investigate the effect of music on concentration and memory
• Measure the effect of temperature on the viscosity of liquids

Ideas For Science Projects

Instead of wasting time searching for great ideas for science projects, why don’t you simply pick one of these ideas:

• A study of the climate and vegetation patterns of your area
• A simple distillation apparatus to purify a mixture of liquids
• Compare natural remedies for common ailments
• Sound frequencies’ impact on microorganism growth
• A study of the patterns and causes of earthquakes and tsunamis
• Compare the effectiveness of 3 cleaning products
• A chatbot that interacts with users

Interesting Science Project Ideas

Do you want to get a top score on your project? Take a look at these amazing science project ideas from our science homework help pros and start building your device right now:

• A simple weather station to track weather patterns over time
• A plant hydroponics system
• A homemade battery using fruits or vegetables
• A solar oven to cook food and study the effect of sunlight
• A seismograph to measure the intensity of earthquakes
• Build a balloon-powered car
• A compost bin to study the decomposition of organic waste
• A simple pendulum clock to study the accuracy of timekeeping
• A plant sensory garden to study the behavior of plants

Our Latest Science Project Ideas

Check out our latest science project ideas right below and keep an eye on this list as we will be updating it periodically:

• Test the strength of different types of synthetic fibers
• Build a small-scale wind turbine to generate electricity
• Examine the effect of temperature on the rate of chemical reactions
• Study the properties and behavior of non-Newtonian fluids
• Investigate the effects of light on the growth of microorganisms
• Build a small-scale model of a solar water heater
• Investigate the effects of exercise on heart rate and blood pressure

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Essay on Visit to a Science Fair

Students are often asked to write an essay on Visit to a Science Fair in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Visit to a Science Fair

Introduction.

Last month, our school organized a trip to a local science fair. The fair was a fascinating mix of innovations, experiments, and scientific wonders.

There were stalls showcasing robotics, space exploration, and environmental science. Each exhibit was interactive, allowing us to engage with the science hands-on.

Learning Experience

The fair was not just entertaining, but also educational. It made complex scientific concepts simple and fun to understand.

The visit to the science fair was an unforgettable experience. It sparked our curiosity and inspired us to explore the world of science further.

250 Words Essay on Visit to a Science Fair

Recently, I had the privilege of attending a science fair held at the local university. The fair was an amalgamation of innovation, creativity, and scientific exploration, offering a platform for students to showcase their groundbreaking projects.

Exhibits and Discoveries

The fair was brimming with a variety of exhibits. From sustainable energy solutions to advanced robotics, the projects were a testament to the students’ scientific prowess. A particular project that caught my attention was a prototype of a solar-powered vehicle, demonstrating the potential of renewable energy in transportation.

Interactions and Learning

The fair was not just about exhibits; it was also a hub for intellectual discussions. I interacted with several young scientists who were eager to explain their projects. Their passion for science was infectious and sparked in me a renewed interest in scientific exploration.

Implications and Future Prospects

The science fair underscored the importance of scientific research in addressing global challenges. The projects showcased potential solutions to pressing issues like climate change, energy crisis, and health care. The fair served as a reminder that science is not just about understanding the world around us, but also about using this understanding to improve our lives.

In conclusion, the visit to the science fair was an enriching experience. It was a journey into the world of scientific discovery, filled with wonder, learning, and inspiration. The fair highlighted the immense potential that lies in harnessing the power of science for the betterment of our world.

500 Words Essay on Visit to a Science Fair

A science fair is a hub of innovation and creativity. It is a platform where young minds showcase their scientific prowess, transforming theoretical knowledge into practical applications. My recent visit to a science fair was an enlightening experience, offering a glimpse into the scientific explorations of these young innovators.

The Awe-Inspiring Atmosphere

Exploring the exhibits.

The exhibits ranged from simple science models to complex prototypes, each representing a vast area of scientific study. There were projects based on renewable energy solutions, artificial intelligence, robotics, and even quantum physics. The level of sophistication and ingenuity on display was astounding.

One particular exhibit that caught my eye was a model demonstrating the principles of quantum entanglement. The students had used simple materials to create a model that effectively explained this complex phenomenon. Their ability to break down such an advanced concept into an easily understandable form was truly impressive.

Interaction with Young Innovators

The impact of the science fair.

The science fair was not just an event but a celebration of science. It was a testament to the power of inquiry, the joy of discovery, and the impact of innovative thinking. It showcased how science could be employed to address real-world problems and improve the quality of life.

The fair also highlighted the importance of fostering a scientific temperament among students. It provided a platform for them to apply their theoretical knowledge, encouraging them to think critically and creatively. Moreover, it underlined the significance of collaboration, as many of the projects were the result of teamwork.

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56 8th Grade Science Fair Projects – 2024

June 23, 2024

If you teach science to 8th graders, you might be looking for science fair project ideas to inspire your students. Or perhaps you’re looking for fresh classroom experiments to demonstrate biology, chemistry, and physics principles. Continue reading for 60 science fair project ideas for 8th grade with a range of topics and difficulty levels/

8th Grade Science Fair Projects – Things to consider

Each project below comes with a ranking according to difficulty and materials, which you can consider as you decide which projects to share with your 8 th grade students.

Difficulty : As you choose a project for your class, it’s important to consider the difficulty of the project. Do your 8 th grade students have enough time for this project? Have they reached a high enough level in the scientific area? Each of these projects is rated “basic,” “medium,” or “advanced” based on the complexity of the concept involved and the amount of time it will take.

Materials : The projects below also range in terms of materials and setup, and they are listed as “basic,” “medium,” or “advanced.” This can help you determine what kind of preparation is required in order to complete each project.

Biology Science Fair Project Ideas

56 Ideas for the 8th Grade Science Fair:

1) Balloon lung capacity

  Using simply a balloon and a tape measurer, this experiment allows students to measure human health and athleticism. It can be made more or less complicated depending on the measurements taken (circumference only vs. volume of the balloon, for example).

• Difficulty: basic
• Materials: medium
• Learn more: measuring lung capacity

8th Grade Science Fair Projects (Continued)

2) water quality testing.

  Do you have a water-testing kit on hand? If not, you can purchase one for under $30. This simple kit opens numerous possibilities for science fair projects, including testing the water quality of local streams, ponds, swimming pools, and drinking-water taps. Water testing is a great way to teach about pollution and the importance of clean water sources.

• Learn more: water quality experiment

3) Plant maze

  Ever noticed how plants grow towards light? With a simple experiment, your students can watch as a plant grows around obstacles. Your plant maze can be as simple or as complex as you’d like.

• Difficulty: medium
• Learn more: plant light maze

4) Animal track casting

Are your students up to a bit of detective work? In this experiment, they can track animals and study their tracks using a homemade plaster mold, and then comparing them for size, shape, and location.

• Learn more: find & collect animal tracks

5) Nitrogen and plants

  Explore how nitrogen aids plant growth with this 8 th grade science project, which involves comparing the growth of pea plants with and without nitrogen-fixing bacteria.

• Learn more: nitrogen and plants

6) Your plant’s favorite music

  Do plants appreciate the music you play? This experiment determines whether classical music affects the growth and health of plants (though you can use any genre you’d like, or test multiple different genres).

• Learn more: plant responses to music

7) Crime scene fingerprinting

This project is especially great for students interested in forensic science. It can be completed using a purchased fingerprinting kit and simple household supplies.

• Learn more: crime scene fingerprinting

8) Myers-Briggs and memory

  Are your students interested in exploring questions of psychology, memory, and mental health? This experiment involves asking volunteers to take a Myers-Briggs personality test, followed by a simple memory exam. They only need internet access and willing volunteers, no extra materials needed!

• Materials: basic
• Learn more: memory and personality

9) Tooth decay with eggs

  Since eggshells share similar properties to teeth, your students can use them to test how different beverages erode tooth enamel. This project teaches biology concepts while also encouraging healthy eating and dental care.

• Learn more: tooth decay egg experiment

10) Water your plants

  For an easy experiment on plant growth, try watering plants with different liquids. You can test different water sources (tap water, rain water, etc.), different salt-levels in water, or even the difference between water and soda.

• Learn more: plant growth with different liquids

11) Cooking and Vitamin C

  For a nutrition-focused experiment, see whether cooked fruits and vegetables have less Vitamin C than raw ones. This involves a slightly more complex procedure, so it’s perfect for your advanced 8 th grade classes.

• Difficulty: advanced
• Materials: advanced
• Learn more: Vitamin C determination

12) Algae growth

  Have you taught your students about fertilizer runoff and its harmful impacts on local waterways? In this experiment, students can test the effects of pollutants on algae growth using household fertilizers and other materials.

• Learn more: algae and pollution

13) Hydroponic vs. soil plant growth

  Perfect for students with a green thumb, this experiment allows students to test whether plants grow faster hydroponically or in soil.

• Learn more: hydroponic vs. soil

14) Bioluminescent bacteria

  For the glowing students out there (as well as the future marine biologists), this project allows 8 th graders to understand how glowing waves are caused by microscopic organisms in the ocean.

• Learn more: ocean bioluminescence

15) Extracting DNA from onions

  In this experiment, students can use a variety of household supplies to see if DNA is able to survive separately from other cell components.

• Learn more: onion DNA extraction

16) Sleep and memory

  Can sleep deprivation affect memory? Have your students ask volunteers a series of trivia questions after getting 8 or 5 hours of sleep. While this project takes some planning, organization, and willing volunteers, it’s a fun way to promote healthy sleep habits.

• Learn more: sleep and memory (plus a few more sleep-related experiment ideas)

Chemistry Science Fair Project Ideas

17) Starch test with iodine

  For a simple chemistry experiment, help your 8 th grade students to understand properties of starch and its presence in various foods.

• Learn more: starch test

18) Carbon sugar snake

  Through the simple chemical reaction of sugar and baking soda, you can make a fiery snake rise from the ground. Take note of safety while doing this experiment, since fire and lighter fluid are involved.

• Learn more: carbon sugar snake

19) Juice spherification

  Try this for a fun and aesthetically-pleasing experiment, which allows your students to create edible spheres, or to “spherify” water and other liquids.

• Learn more: spherification of water

20) Hand-warming chemistry

  Ever wish you could heat up your hands on a cold day? Instead of buying a commercial warmer, try making one of these. This experiment offers a practical solution to an everyday problem.

• Learn more: homemade hand warmer

21) Sports drink challenge (for electrolytes)

We’ve all heard sports drinks advertised as having electrolytes. What does this mean, exactly? Is drinking Gatorade really much better than a glass of orange juice? Try this experiment to find out. You’ll need a few special supplies, including a multimeter and an ohm resistor .

• Learn more: electrolytes in sports drinks

22) Find the best detergent

  Test which laundry detergent is really cleaning your clothes. After making coffee, ketchup, and makeup stains on white handkerchiefs, students will test several laundry detergent brands for effectiveness. For an extra challenge, they can analyze the ingredients in each detergent to see which is the most active.

• Learn more: laundry lab

23) Color-changing beads for UV resistance

Through this experiment, you can use color-changing UV beads to test the protective power of various household objects against the sun.

• Learn more: UV bead experiment

24) Taco sauce penny cleaner

  Can you really clean pennies with taco sauce? Have your students collect their most tarnished pennies and test the theory. Then, see which ingredient (or combination of ingredients) in taco sauce is the most effective by testing them separately.

• Learn more: taco sauce penny cleaner

25) Effects of acid rain

  In order to understand how acid rain affects buildings and other structures, students can use chalk for a stand-in for stone. For a more complex project, they can explore ways of protecting the structures, thereby mitigating the effects of acid rain.

• Learn more: effects of acid rain

26) Hot yeast experiment

  Discover how temperature impacts yeast fermentation. The ingredients are simple: clear glasses, 3 balloons, 3 packets of yeast, sugar, and water.

• Learn more: hot yeast experiment

27) Root beer brewing

  Root beer, a favorite soda for many, is actually just a combination of water, sugar, and flavorings (plus carbonation, which comes from carbon dioxide gas). For a delicious 8 th grade science fair project, test ingredients for the best root beer brew (students can test for fizziness, sweetness, or best flavor by popular vote).

• Learn more: root beer science

28) Extract bismuth from Pepto Bismol

  For a more complex chemistry procedure, grind some Pepto Bismol pills and extract bismuth, its active ingredient. This experiment takes a while, so make sure you leave time for multiple trials.

• Learn more: extract bismuth from Pepto Bismol

29) Homemade ice cream

  The secret to making ice cream is to lower the freezing point of ice. The secret to this secret? Salt. With this experiment, you can have delicious vanilla ice cream ready in about 20 minutes. Test different ingredients and times for the best results.

• Learn more: homemade ice cream

30) Rock candy

  Here’s another delicious one, which only requires dipping a string in some sugar water to create a beautiful candy crystal.

• Learn more: homemade rock candy

31) Waterproof fabric

  In this experiment, you can test different clothing materials (nylon? Wool? Polyester? Silk?) to see which is the most water resistant.

• Learn more: put your fabric to the test

32) Soap and surface tension

Surface tension, put simply, causes the molecules in the surface of a liquid to cling together. In this 8 th grade science fair project, you can test how soap affects surface tension.

• Learn more: soapy surface tension

Physics and Engineering Science Fair Project Ideas

33) build-a-lightbulb.

  Teach your 8 th graders about electricity with this simple lightbulb project. By experimenting with simple materials, students can explore how to create the longest-lasting and brightest light source.

• Learn more: build a lightbulb

34) Built-a-platform

  Any aspiring architects in your class? In this physics and engineering challenge, students create a paper cup structure (with three or more platforms for an extra challenge) that can support their weight.

• Learn more: paper cup structure

35) Solar-powered oven

  Food-related projects aren’t reserved for chemistry. Your students can make s’mores by engineering their own ovens, changing up the construction process for different results.

• Learn more: solar oven

36) Engineer a roller coaster

  Challenge your students to create a roller coaster, loops included. They can experiment with the height and size of the loops, as well as marble weight.

• Learn more: roller coaster building

37) Crash cars

  This experiment involves building cars out of basic classroom materials (plus miniature wheels and axles, which can be found easily online). Then, students can crash-test their cars with raw eggs inside as “passengers.” What structures best protect the egg?

• Learn more: car crash project

38) Find your center

  Help unexpected objects balance in unexpected places with this center of gravity experiment. Using pipe cleaners and clothes pins, play with raising and lowering an object’s center of gravity. Though this project is simple, but it certainly isn’t easy.

• Learn more: center of gravity experiment

39) Spinning glasses of water

While you might think that swinging a bucket of water over your head would leave you soaked, if you swing it around fast enough, you might actually stay dry. Your students can understand the physics behind this phenomenon by building homemade “centrifugal force boards.” Change variables such as speed and cup shape for added complexity.

• Learn more: spinning glasses of water

40) Power homemade batteries

  This experiment offers an excellent intro to electricity using materials that your students likely already have at home.

• Learn more: DIY batteries

 41)  Graphite circuit

  For another electricity-focused experiment, challenge your students to create an electrical circuit using pencil graphite. Since it involves drawing, students can put their art skills to use for a beautiful result.

• Learn more: graphite circuit

42) Homemade projector

  This experiment is a great way for students to understand the science behind light. All they need is a smartphone with videos, a cardboard box, a magnifying glass, and a few basic tools. Different box and magnifying glass measurements can be used as variables.

• Learn more: homemade projector

43) Parachute egg-drop

  Help an egg reach a safe landing by creating a homemade parachute. Test multiple kinds of parachutes to learn about force and gravity, and see which one protects the egg most effectively.

• Learn more: parachute egg-drop ideas

44) Coin tower

  In this demonstration, students build towers of coins and use physics concepts to remove the bottom coin with a butter knife. For experimental variations, use different amounts and sizes of coins.

• Learn more: coin tower challenge

45) Wind-powered car

  By creating a sort of sailboat-car-hybrid, students can learn the engineering behind basic vehicles, adjusting its components to test for speed and distance.

• Learn more: wind-powered car

46) Balancing water glass

  For another architecturally-relevant exercise, create a system of knives and bottles that can balance a full glass of water in the middle. Play with different design elements to conduct a challenging engineering experiment.

• Learn more: balancing glass trick

More Ideas for Classroom Learning – 8th Grade Science Fair Projects

47) newton’s cradle.

  Your 8 th grade students might have seen a Newton’s cradle, but have they created one? Teach them about energy transfer and momentum using only simple materials such as marbles, string, and popsicle sticks.

• Learn more: making a simple Newton’s cradle

48)   Floating compass

  With only a cork, a needle, and a glass of water, teach your students about magnetic forces and Earth’s poles.

• Learn more: floating magnetic compass

49)  Relight a candle

Once a candle goes out, it may seem impossible to relight it without a new match. Think again! This experiment teaches students about the seemingly magical workings of hydrogren, carbon, and oxygen. Take it a step further by changing the variables of wax temperature, wick size, and candle type.

• Learn more: magic traveling flame

50) Ring of Pringles

  This edible STEM challenge is perfect for a fun break mid-semester or for the last day of school . Though it seems easy, it will likely take students multiple tries to figure out.

• Learn more: ring of Pringles

51) Light maze

  Create a maze of objects and work to get a beam of light through. This is a great way to engage your students using objects you already have sitting around.

• Learn more: light maze

52) Build a cup holder

  For a challenging engineering exercise, give your students 5-minutes to create a device that can balance and carry two cups of water. Have them test their cup holders as a fun outdoor activity.

• Learn more: cup holder STEM challenge

53) Take DNA extractions

  DNA, found in the nucleus of cells, acts as a sort of blueprint for the development and functioning of organisms. While this may seem somewhat inaccessible to 8 th grade students, it’s actually possible to extract using classroom lab materials, soap, and mouthwash solution.

• Learn more: how to extract DNA

54) Separate water into hydrogen and oxygen

  For the 8 th grade chemistry teachers out there, you can demonstrate how water is actually formed out of two gases using electrolysis, a process that reduces H20 back to H and O.

• Learn more: separate water into hydrogen and oxygen

 55)  Unpoppable balloon

It may surprise your 8 th grade students that you can hold a balloon up to a flame without popping it. Thanks to water, a great absorber of heat, the rubber barely even weakens when it touches a flame.

• Difficulty: easy
• Learn more: fire water balloon

56) Grow garbage plants

For an ongoing class experiment that you can track over a series of weeks, grow plants using different kinds of compost and garbage to see which kind of matter facilitates the quickest growth. This project is a great way to promote collaboration and sustainability in your classroom.

• Learn more: multimeter

8th Grade Science Fair Projects – Additional Resources 

Whether you’re teaching your 8 th grade students about plant biology, discussing chemical properties, or helping them understand what it takes to engineer a car, these science fair projects and classroom learning activities are great ways to challenge your students. For further classroom resources relevant for middle school learning, we recommend the following articles:

• 124 Good Icebreaker Questions for Students/Adults
• 141 Fun, Weird, & Interesting Facts
• 60 Team-Building Activities for Kids & Middle/High School Students
• 150 Journal Prompts for Kids, Middle, & High School Students
• 60 Easy Science Experiments for Kids
• 62 Best Research Opportunities for High School Students 
• Teacher Tools

Sarah Mininsohn

With a BA from Wesleyan University and an MFA from the University of Illinois at Urbana-Champaign, Sarah is a writer, educator, and artist. She served as a graduate instructor at the University of Illinois, a tutor at St Peter’s School in Philadelphia, and an academic writing tutor and thesis mentor at Wesleyan’s Writing Workshop.

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Science Essay Topics: 30+ Interesting Ideas for Your Paper

by  Antony W

June 9, 2024

The first step to write a science essay is to choose an area to explore. As such, you have to brainstorm for topics and determine which title would be the most suitable for your paper. Unfortunately, brainstorming isn’t as straightforward, not to mention it won’t give you better results quickly.

A good approach is to look at our list of pre-written ideas, as it makes it easy for you to find a topic that you can explore in your work. Of course, there is no limit to what you can explore. Depending on how many science papers you have to write, you may need a list of one or multiple topics to complete your assignments.

Best Science Essay Topics

From genetics and robotics to physics and biology, here’s a list of 50+ science essay topics that you may find interesting for your next assignment:

Science Information Technology Topics

Science is the reason technology exists. If you think about it, technologists apply scientific knowledge for practical purposes, for which it’s possible to create tools, systems, and solutions that address human needs. Here are some technology topics to consider:

• Analyze information technology’s influence on educational paradigms.
• Do a comprehensive examination of the advantages of cloud computing
• Environmental implications of information technology
• Delve into the ramifications of artificial intelligence
• Write about the contemporary perspectives on the role of robotics in technological advancements.
• You can evaluate the impact of information technology on healthcare systems.
• Analyze the interplay between science fiction and technological progression.
• Do a strategic examination of information technology’s impact on business operations.

Computer Science Essay Topics

Your computer science assignment should focus on exploring technology topics linked to computer science. The essay could be reflective, argumentative, or explanatory in kind. Here are some ideas to consider:

• Explore the impact of artificial intelligence on people’s lives
• How can we use algorithms to solve complex problems?
• What is machine learning, and how does it work?
• What does the future of computer science look like?
• Explore the ethical and legal issues surrounding AI and machine learning.
• Does big data have any implication on human lives?
• Examine the role of robotics in modern technology
• The role of computer science in modern society
• Understanding the basics of coding and software development

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Data Science Essay Topics

Data science focuses on combination of machine learning, advanced data analytics , specialized programming, and math to examine data. The data extracted and examined can be quite helpful in strategic planning and decision-making. Consider the following for your essay:

• The role of data science in modern society
• What is big data and how can you use it in data analysis today?
• Explore the implications of artificial intelligence on data science.
• The importance of data security and privacy
• Examine the role of machine learning in data science.
• What are the basics of coding and software development?
• What is the future of data science?
• The implications of big data on our lives
• Explore the ethical and legal issues surrounding data science.

Natural Science Topics

Your natural science essay should fall within the theme of the natural world around you. You will need to look at evidence, observation, and constructive imagination to develop reasonable scientific conclusions on how the world around you works. Here are some cool ideas to get you started:

• How do natural disasters affect ecosystems?
• What is the importance of biodiversity?
• Are the effects of pollution reversible?
• What are the different types of renewable energy sources?
• Is deforestation a major contributor to global warming?
• How can we protect marine life from climate change?
• What is the role of genetics and environment in human health?
• What has been the most significant medical discovery?
• How does climate change impact agriculture and food production?
• What are the consequences of overfishing?
• What is the role of technology in sustainable development?

Environmental Science Topics

Your professor expects to see an essay that focuses on the utilization of chemical, physical, and biological elements to explain how humans can deal with ecological issues. Consider the following topics:

• Assess the extent and consequences of human activities on ecosystems
• Propose effective measures to preserve and sustain our ecosystem
• What’s a more holistic approach to resource management and sustainability?
• Understanding, mitigating, and preventing detrimental effects on ecosystem health
• Can we rethink energy sources to alleviate environmental stress and resource depletion?
• Analyze patterns, causes, and projections of global environmental shifts.
• Explain the ecological implications of deforestation.
• Advocating water conservation as a pillar of sustainable development
• Examine the ecological footprint of overpopulation and talk about balancing population dynamics and environmental integrity.

Forensic Science Topics

Forensic science assignment focuses on the application of scientific methods to investigate issue related to law and justice. Investigators use this technique to search crime scenes , collect evidence, process evidence, break their research down, and issue logical outcomes a court can use to issue fair judgments. Lawmakers heavily rely on forensic science to determine whether something did or didn’t take place. 

• Explore the integration of forensic science within criminal inquiry and explain applications, techniques, and limitations.
• Write about the the crucial role of forensic science in crime resolution.
• Understanding the path to forensic science expertise: Education, training, and proficiency in investigative techniques
• You can do a comprehensive examination of methodologies and specializations.
• Explain how one can navigate the challenges in forensic science from technological advancements to legal and ethical complexities.
• Can we foresee the evolution and future innovations in forensic science?
• Ethical dilemmas in forensic science: Addressing moral and legal implications in investigative practices
• You can write an essay that analyzes the evolutionary impact of technology in forensic science.
• Societal implications of forensic science: Unpacking contributions, consequences, and public perception

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About the author 

Antony W is a professional writer and coach at Help for Assessment. He spends countless hours every day researching and writing great content filled with expert advice on how to write engaging essays, research papers, and assignments.

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Science Essay

Science Essay Topics

150+ Engaging Science Essay Topics To Hook Your Readers

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Check Out 5 Impressive Essay About Science Fair Examples

Have you got a science essay to write but cannot find a good topic?

It can be hard for students to come up with interesting and engaging essay topics.

So check out this list of topics for science essay that are sure to engage your readers.

From physical sciences to genetics and robotics, there's something for everyone on this list. Plus, you'll get tips on how to choose an essay topic for yourself.

So read on! 

• 1. Science Essay Topics For Students
• 2. Science and Technology Topics
• 3. Natural Science Essay Topics
• 4. Environmental Science Essay Topics
• 5. Forensic Science Essay Topics
• 6. Earth Science Essay Topics
• 7. Biology Essay Topics
• 8. Physics Essay Topics
• 9. Health Science Essay Topics
• 10. Tips for Choosing a Science Essay Topic

Science Essay Topics For Students

School and college students often have to write science essays . But it's difficult for students to think of a science essay topic. 

If you are one of those students, this list will help you out!

Science Essay Topics For 5th Graders

• How does climate change affect the environment?
• How do earthquakes happen?
• What is the cause of global warming?
• Why are fossil fuels harmful?
• What is the difference between a virus and a bacterium?
• What are some renewable energy sources?
• The amazing world of minerals: A science fair exploration
• What is the difference between a comet and an asteroid?
• How do galaxies form?
• How does photosynthesis work?
• What is the water cycle, and how does it work?
• What is soil erosion?

Science Essay Topics For Class 8

• The benefits of space exploration
• Earth's climate and how it has changed over time
• Evolution: How it works and the evidence for it
• The human body: Its functions and how it works
•  Science in everyday life: Uncovering the hidden wonders
• The solar system: What we know about it
• Microbes: What they are and what they do
• Technology in science: Its impact and future

Science Essay Topics For High School Students

• What is the difference between a scientific theory and a scientific law?
• How does the scientific method work?
• What is the difference between a hypothesis and a theory?
• What are some common elements of chemistry?
• What is the difference between an element and a compound?
• What is the difference between mass and weight?
• Why do scientists use models in their experiments?
• How can scientists use data to support or disprove a hypothesis?
• What is the importance of Peer Review in science?
• How has science evolved over time?

Science Essay Topics For College Students

• How can we prevent pandemics from spreading?
• How does radiation affect living things?
• What is an ecosystem, and how does it work?
• What is energy, and how is it created?
• What are the causes and effects of sea-level rise?
• What is the impact of space exploration on human life?
• What is the importance of biodiversity?
• How can genetic engineering be used to improve our food supply?
• How can nanotechnology be used in medicine and healthcare?

Easy Science Essay Topics For Students

• How does evolution work?
• Discuss the role of science museums in science education.
• What causes climate change?
• Is there evidence of extraterrestrial life?
• What are the effects of global warming?
• What is the nature of dark matter and dark energy?
• How does the human brain work?
• What is the purpose of quantum mechanics?
• How has technology changed communication?
• What are the benefits of stem cell research?

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Science and Technology Topics

Science and technology is a growing field. Here are a few emerging topics related to science and technology.

Information Technology Essay Topics

• The role of technology in modern society
• Exploring the implications of artificial intelligence
• What is machine learning, and how does it work?
• What are the benefits of cloud computing?
• Discuss the role of robots in modern technology
• What is the future of information technology?
•  The influence of science fiction on modern technology and society
• The impact of information technology on business
• The impact of information technology on education
• The impact of information technology on healthcare
• The impact of information technology on the environment

Computer Science Essay Topics

Here are some interesting computer science topics. 

• The role of computer science in modern society
• Explore the impact of artificial intelligence on people’s lives
• How can algorithms be used to solve complex problems?
• Understanding the basics of coding and software development
• Examining the role of robotics in modern technology
• What does the future of computer science look like?
• The implications of Big Data on our lives
• Exploring the ethical and legal issues surrounding AI and machine learning.

Data Science Essay Topics

• The role of data science in modern society
• What is big data, and how can it be used?
• Explore the implications of artificial intelligence on data science
• The importance of data security and privacy
• Examine the role of machine learning in data science
• What are the basics of coding and software development
• What is the future of data science?
• Explore the ethical and legal issues surrounding data science

Natural Science Essay Topics

• How do natural disasters affect ecosystems?
• Are the effects of pollution reversible?
• What are the different types of renewable energy sources?
• Is deforestation a major contributor to global warming?
• How can we protect marine life from climate change?
• What is the role of genetics and environment in human health?
• What has been the most significant medical discovery?
• How does climate change impact agriculture and food production?
• What are the consequences of overfishing?
• What is the role of technology in sustainable development?

Environmental Science Essay Topics

• The impact of human activity on the environment
• What can be done to protect the environment
• The importance of recycling
• The dangers of pollution
• The need for alternative energy sources
• The threat of climate change
• The impact of deforestation
• The importance of conserving water
• How overpopulation impacts the environment
• Ways to make a home more energy-efficient

Forensic Science Essay Topics

• The use of forensic science in criminal investigations
• The role of forensic science in solving crime
• The training and education required to become a forensic scientist
• The different types of forensic science
• The challenges faced by forensic scientists
• The future of forensic science
• Ethical issues in forensic science
• The Impact of Technology on Forensic Science
• The impact of Forensic Science on Society
• What are the benefits of forensic science

Earth Science Essay Topics

• The causes and effects of tsunamis
• How has climate change affected our planet?
• What are plate tectonics and their impact on Earth’s geology
• Examining the implications of space exploration
• How does soil composition affect plants?
• The causes and effects of ocean acidification
• What impact have humans had on Earth’s biodiversity?
• Examining the greenhouse effect and its effects on Earth’s climate
• Exploring the role of Ozone in protecting our atmosphere
• How does energy from the sun affect life on Earth?
• The importance of preserving endangered species and habitats

Biology Essay Topics

• What is DNA, and how does it work?
• How does our immune system work?
• How do animals adapt to their environment?
• What are the environmental effects of overpopulation?
• Exploring the role of genetics in human behavior
• The impact of hormones on human behavior
• Examining the links between diet and health
• Exploring the role of stem cells in treatments for diseases
• Exploring the impact of viruses on human health
• What is epigenetics and how does it work?
• How can we use biotechnology to improve our food?

Physics Essay Topics

• What is the nature of light?
• Explain the properties of matter and energy
• Explain the laws of motion
• What are the implications of quantum mechanics?
• Explain the structure of atoms and molecules
• What are the basics of thermodynamics
• Explain the properties of waves
• Exploring the principles of electromagnetism
• The implications of relativity on our understanding of the universe
• Exploring the nature of dark matter and dark energy.
• Examining the implications of advanced physics on technology.
• How can particle accelerators be used to further our understanding of the universe?

Health Science Essay Topics

• What are the causes and effects of obesity?
• Explore the implications of alternative medicine
• The role of nutrition in maintaining good health
• How important is exercise for overall health?
• Discuss the benefits of preventive healthcare
• Examine the ethical and legal issues surrounding genetic testing
• How can we use science to address global health challenges
• What are mental illnesses, and how are they treated?
• Explore the implications of advances in medical technology
• What is the role of mental health in overall health and well-being?
• The impact of environmental pollution on public health 

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Tips for Choosing a Science Essay Topic

A good topic is a key to a good essay. But choosing a good science essay topic can be tricky.

Here are a few tips to help you choose a good topic.

• Choose a topic that interests you.

When choosing a topic for your science essay, it is important to choose one that you find interesting.

This will make the process much easier and more enjoyable. You will be able to focus on the topic with greater enthusiasm and write about it with more passion.

• Make sure the topic is relevant to your course or field of study.

Your science essay should be relevant to what you have been studying in your course.

Choose a topic related to the material you have been studying in class or researching.

This way, you will already have preliminary knowledge about the topic, making further research easier.

• Make sure the topic is manageable.

Make sure you choose a topic that is manageable and can be adequately explored within the scope of your essay.

Choosing a topic that is too broad or too narrow can make writing difficult. 

• Consider the audience.

Think about who will be reading your science essay when choosing a topic.

If you are writing for an academic audience, like your teacher or classmates, select an appropriate and relevant topic.

Considering the preferences of the audience will help you select a better topic.

• Choose a topic that you can comfortably write about.

When selecting a science essay topic, make sure it is one you are comfortable discussing.

This doesn’t mean choosing an easy topic. Instead, find a topic that allows you enough room to explore the subject without becoming overwhelmed.

• Do some preliminary research before making your final decision.

Researching the topic before making a final decision is essential.

This will give you an idea of how much information is available on the subject. Researching will also show you whether you can sufficiently discuss the topic in a short essay.

Moreover, take notes during your research so you may cite them in the essay. Citing your research will make your essay more credible and help you avoid plagiarism .

By following these tips, you should be able to choose a great science essay topic.

To conclude,

The list of topics in this blog has addressed your topic-related difficulties. Moreover, with the tips provided, you will be able to choose a great science essay topic that best suits your needs. 

You can also read some science essay examples to learn science essay writing or try our AI essay typer to get some creative and unique science essays for reference.

Are you looking for essay writing assistance? Our science essay writing service can help you out. 

We have years of experience writing top quality science essays for students. So, contact our essay writing website now, we're just a click away!

Frequently Asked Questions

What should i avoid when choosing a science essay topic.

Avoid science topics that are:

• Not interesting for you or your readers
• Not related to your course
• Too broad or too narrow
• Too difficult to research
• Too controversial

How do I determine if a science essay topic is manageable?

When determining if a topic is manageable, check whether enough information is available on the subject. Moreover, consider how effectively you can discuss the topic within the scope of your essay. If you can find information easily and convey it effectively, your topic is good to go.

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Betty is a freelance writer and researcher. She has a Masters in literature and enjoys providing writing services to her clients. Betty is an avid reader and loves learning new things. She has provided writing services to clients from all academic levels and related academic fields.

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Unveil the Scientist Within You: Ultimate Science Fair Projects for Every Age and Passion

Step right into the thrilling and rewarding world of science fairs! This blog post is your ultimate guide to all sorts of super fun and diverse science fair projects for learners of all ages. Whether you’re a student bursting with curiosity, a teacher seeking inspiration, or a parent trying to stir up your child’s interest in science, we’ve got you covered. Let’s dig in and find the spark that will turn science into your new favorite thing!

🔍 Picking the Perfect Project for Your Science Fair

Ready to pick your project? There are few factors to consider when choosing your science fair project. So, just review three steps to get you started:

• Think about what makes you tick and feel the goose bumps: Pick a topic that keeps you up at night with curiosity. Align it with your skills and things you’re good at.
• Look around for resources and deadlines: Make sure you have everything you need and enough time to finish your project without rushing.
• Sync with school stuff: Link your project to what you’re studying at school or your academic goals. This way, your project can serve as a cool extension of your classroom learning.

🧒 Science Fair Projects Sorted by Age Group

🎒 little scientists (elementary school projects):.

• Biology: Play with plants! See how different light, soil, and water conditions can make them grow differently.
• Chemistry: Test different liquids from your kitchen (like vinegar, lemon juice, or soap) to find the best natural cleaner.
• Physics: Build a simple machine like a pulley or lever, and show how it makes hard work easier.
• Earth Science: Construct a mini-volcano and make it erupt with the help of baking soda and vinegar.

🌱 Budding Researchers (Middle School Projects):

• Biology: Find out if plants like music as much as we do by playing different tunes to them and observing their growth.
• Chemistry: Create your own battery at home using various chemical reactions.
• Physics: Build a solar oven and test how well it cooks different foods.
• Earth Science: Set up your weather station and record the local weather patterns.

🎓 Junior Einsteins (High School Projects):

• Biology: Test various natural pesticides to see which one is best at keeping those pesky bugs away.
• Chemistry: Discover how to extract essential oils from plants and what they could be used for.
• Physics: Look into what makes wind turbines work best.
• Earth Science: Study how climate change is affecting your local ecosystems.

💡 Cross-Disciplinary Science Fair Project Ideas

Feel like mixing things up? Combine multiple scientific areas or even add a touch of technology, engineering, or math to your project. How about creating an app that helps users identify local plants? Or building a green robot capable of performing a specific task?

🏆 Tips to Ace Your Science Fair Project

• Do your homework and plan ahead: Spend time researching your topic and lay out a clear roadmap before you begin.
• Experiment and gather data: Carry out your experiments carefully, keeping safety in mind, and make sure to record your results accurately.
• Make sense of the data: Study your results, spot trends, and make conclusions based on what you’ve found.
• Share your findings: Present your work in a way that’s visually striking and informative, telling the story of your project clearly.

🔎 Where to Find More Science Fair Project Ideas

• Online: Loads of websites and blogs are filled with science fair project ideas and tips.
• Print: Check out science books and magazines — they’re a goldmine for project ideas and inspiration.
• Visits: Take a trip to a local science museum or educational center for hands-on experiences and project ideas.
• Ask: Talk to your teacher or mentor — they can offer astonishing and amazing ideas and then support you throughout your project.

❓ Frequently Asked Questions (FAQs)

Want to make your science fair project shine?

Pick a topic that’s unique and engaging, execute your project meticulously, and present it in an eye-catching, informative way.

Thinking of teaming up for a project?

Amazing! Collaborating with a partner or a group can make brainstorming and task-sharing more fun. Just remember to check the rules of your science fair regarding group projects.

Need help or guidance during your project?

Don’t be shy and ask your teacher, mentor, or even friends and family for help. That’s the trick! Still, you can find some valuable information and insights to work on your project in books, online blogs, and videos.

  Digging Deeper: Your Guide to Valuable Science Resources

In the world of science, there’s always more to discover. To help you continue your journey beyond this guide, we’ve compiled a concise list of reliable online resources. Each one is a beacon of knowledge, lighting the way to new scientific explorations.

• Science Buddies : An invaluable ally for students and teachers, providing tools and inspiration for science fair projects.
• Education.com : A wide-ranging educational hub, catering to scientists from kindergarten to high school.
• The Exploratorium : A learning laboratory, fusing science, art, and human perception into engaging activities.
• Bill Nye The Science Guy : From the beloved science communicator, an array of enjoyable and educational home experiments.
• Scientific American : ‘Bring Science Home’ offers scholarly yet accessible activities and experiments.
• American Association for the Advancement of Science (AAAS) : A respected organization offering a variety of educational resources.
• Discovery Education : Known for its plethora of free educational resources, including games and lesson plans.

Each of these websites is a rich reservoir of knowledge, ready to quench your thirst for scientific discovery. So, pull up your favorite web browser and let the exploration begin!

Diving into a science fair project is an awesome way for you to immerse yourself in the magical world of science and learn new things. With our ultimate list of super cool science fair projects, we hope to ignite your passion for scientific exploration. Good luck with your science fair journey, and don’t forget to share your experiences or ask questions in the comments section below. Let’s get to experimenting!

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Your Guide to a Successful Homeschool Science Fair

The late afternoon sun poured liquid gold through the west-facing windows. A girl, a dog, and a mom stood by the lit stove in a quiet house, methodically adding sugar to water in a pan to create a super-saturated solution. As the steam from the open pan drifted upward, the sun illuminated the molecules and transformed this scene from our homeschool science fair into something extraordinary.

How to Do a Homeschool Science Fair Project

A homeschool science fair is the perfect opportunity to explore the scientific method, encourage creativity, and foster a love for learning. We roughly followed the same steps presented in the Simplifying Science Fair video series available on CC Connected.

Step 0: Develop an Exploratory Question

Do you remember in your child’s early years they would ask delightful and sometimes impossible questions? Why don’t dogs like cats? Will a watermelon grow in my tummy if I swallow a seed? Why can’t I see wind? We are born full of wonder, and the first step of Science Fair is to rekindle wonder. What makes your child curious? What puzzles them?  What captures their interest again, again and again? Do they constantly test the material world with “I wonder what will happen if . . . ?” It is in these exploratory questions that the first step lies.

Of course, we can’t allow for infinite wonder, but we do want to encourage our students to be willing to wonder about their topic for at least 10 weeks.  In my daughter’s case, she has had an ongoing fascination with crystals since she attended Science Fair in our local homeschooling community when she was yet a wee one!  Her project was the perfect application for wonder!

After that initial step of dreaming and of wondering, we roughly followed the same steps outlined in CC Connected (condensing them into a single step in some places):

1. The Lab Journal. My daughter prepared a simple, well-organized journal for her science project. She would write everything in a notebook by hand, kept it consistent, and kept it neat.

2. Research. Starting from that place of initial wonderment and guided by the scientific method, my daughter developed a research plan, a research problem, and a research question. Once those were in place, she began her background research. She was interested in crystals, which led her to develop a research plan centered around crystal growth.

3. Hypothesis. A good hypothesis is the starting point for every experiment, and so my daughter spent a lot of time on this particular step.

4. Experimentation. Together, we gathered materials, and she drew up a procedure that included safety precautions (growing crystals involves a lot of heat—always a source of caution for scientific experimentation!) and a plan for analyzing her data. Then, and only then, she did she conduct her experiment.

5. Analysis. My daughter measured her crystal growth, recorded her findings, compared them to her hypothesis, drew up her bibliography, and then wrote her research paper.

6. Presentation. Finally, as we organized the project according to the classical method, my daughter presented her findings using the five canons of rhetoric (more on that in a moment).

A Note on CC Connected and the Challenge A Science Fair

My daughter and I were very well equipped with content in our Challenge A guide and support from our Director. Furthermore, Classical Conversations members have the benefit of wisdom and memory in their local community from parents and students who have done it before. You’ll learn so much from asking questions and having conversations. Further, there’s a wealth of resources in CC Connected including a Parent’s Guide taking you step by step through the experience, videos, and even a certificate of completion to award your student!

Keep in mind that simple is best.  It’s not intended to be ironic that 14 of the 17 assets in the Challenge A Learning Center in CC Connected begin with “Simplifying” in their title!  There are amazing charts, connections to the Five Common Topics, sample questions, and more.

Classical Education and Science Fairs

It is important to note that the classical tools of learning played a vital role in shaping the order of the science fair for my family. We used the Socratic method during the initial stages to spark an ongoing dialogue about crystals, a dialogue that deepened both our understandings. Furthermore, the five canons of rhetoric naturally guided much of our inquiry and activity:

The canon of invention helped us engage some of the big ideas necessary for us to understand the elements of our project and helped us identify the resources we needed.

We used the canon of arrangement to organize our thoughts. My daughter delighted in being wholly responsible for generating her lab notebook, presentation board, and research report. It was necessary to use precise language to describe the process and report findings.

The canon of elocution helped my daughter articulate her thinking and conclusions well.

The canon of memory required attention and practice as my daughter had many big words to learn to pronounce correctly, some detailed technical information to share, and an involved process to explain.

And finally, this all came together in the canon of delivery as my daughter stood before judges, shared her abstract, detailed her process, shared her conclusions, and, of course, offered them some sugar crystal candy!

What Do Homeschoolers Learn From Science Fairs?

Sure, we were “just” following the scientific method as we conducted my daughter’s Challenge A science fair experiment. But, in the quietness of that moment, my eyes were opened to see more than an assignment. I saw ownership, order, and an expression of wonder and delight as my daughter interacted with her physical world.

Science Fairs Encourage Students to Take Ownership

From the beginning of her Challenge A experience, my daughter had an unwavering desire to grow sugar and borax crystals and develop an experiment for science fair that would allow her to test a dependent variable. She enthusiastically watched YouTube videos, one after the other, of different (but remarkably similar) ways to grow crystals. She talked about crystals, made shopping lists for supplies to grow crystals, set out rows of food coloring drops to make psychedelic crystals, and created a plan for producing and then presenting her classmates with edible crystals as part of her science fair presentation. She read her Challenge A guide faithfully, followed the weekly assignments, and utilized the feedback and support her Challenge A Director offered. She was on top of it, ready to go, eager to get started.

And then she hit a roadblock.

She had not designed a good experiment. Although there are plenty of resources for planning and executing a crystal-growing science fair project with good experiments, she had discounted any need for outside input. “I’ve got this mom!” she told me, all about the science and blissfully confident in the process. And it was when she bumped into herself and her unaccounted-for barriers that her ownership of her science fair project began to soar.

Back to research and YouTube, she went! A review of her notes from Challenge A seminar, her guide, and her Director’s feedback were in order. She asked lots of questions, employed dialectic skills through the five common topics, and reset her course. She had a new hypothesis, a new experiment, and a measurable dependent variable for which she could expect satisfactory results.

She did it! Without too much drama and with steadfastness, she kept hold of science fair as her project. Mom wasn’t there to “bail her out.” Instead, I supported her steps. I let her hold the responsibility and discomfort of her initial mistakes. And, as I let her endure this modest failure, she overcame her frustrations, renewed her efforts toward a project she still loved, and took hold of her experience and bore up under its requirements. Indeed, the theme of Challenge A, “Attention Leads to Ownership,” rings true!

Science Fairs Show Students Order

Science fair in Challenge A is beautifully planned. There’s nothing left to chance, guesswork, or up to the parent or student to invent. The Challenge A guide does a commendable job of moving your student along weekly. Its appendices are the perfect balance of supplemental information. Equipping and encouragement are available on CC Connected. And your Challenge A Director is sincerely interested in your student’s project and is a wealth of support and motivation!

It’s probably not fair to say that science fair is easy. There is quite a bit of work involved, and sometimes the “extra” elements may catch you off guard. For example, I hadn’t understood just how much sugar my daughter would need to complete her crystals, nor did I anticipate the totality of what she hoped to gift her classmates! But, on the flip side, it’s probably not accurate to say that science fair is difficult. It falls somewhere in the middle. And, in the scope and sequence of the Challenge years, Challenge A is its “sweet spot”!

There are character issues that come up. Ordering one’s time, following instructions, responding appropriately to authority, following through — all these and more will be a part of the science fair experience. And I would not be honest if I didn’t disclose that there were indeed times when the disorder of my mind or my daughter’s attitude was evident. But it was our behavior in the difficulties that arose which allowed us to break through, reorder our efforts, and move forward. We returned to order, and our path grew smooth.

Science Fairs Allow Students to Wonder and Delight

My daughter never grew tired of growing crystals. Instead, she delighted in each new batch as if it were the first time she’d ever seen such a thing. She held regular science fair chats with her dog, believing all along that Primrose (her pet) was equally interested in the unique formations growing on our kitchen counter. She acted as if she was the first human being to understand sugar crystals because, in a way, it’s as if she was  the first—because it was her discovery !

In  A Different Kind of Teacher: Solving the Crisis of American Schooling , John Taylor Gotto says, “The primary goal of real education is not to deliver facts but to guide students in the truths that will allow them to take responsibility for their lives.”

This is the beauty of the science fair. My daughter encountered truths about her physical world, herself and her capacities, and how to take responsibility for an extended project. In a small and impactful way, she took responsibility for her life in active participation in science fair.

What is the Challenge A Science Fair?

I’m not incredible at remembering to take pictures, but we took some that golden afternoon. The light was so intense you can see individual steam droplets rising in the photos. My daughter stands confidently in front of the range, her dog obediently at her feet, and my daughter’s face is composed; her eyes sparkle, and it is evident that she was experiencing the harmony of the ages as she quietly stirred.

After all was said and done and the project board tucked away for memory’s sake, I was asked to write my response to the question, “What is the Challenge A science fair?” Now, I could offer academic, philosophical, or characterological answers. Still, they wouldn’t ring as true as this: science fair, in our particular case, is a gift . It is an unanticipated joy. And, it now remains a precious memory of a specific afternoon, a successful project, and the treasures of ownership, order, wonder, and delight.

Written by:

Laura Kooistra

Parent and Lead Communications Writer

Laura Kooistra, the wife of Kent, mother to six, belongs body and soul to her Lord and Savior, Jesus Christ. A decades-long home educator, she has always employed classical learning tools but found her people and place in community when she joined CC as a Challenge B Director in 2012. Her youngest daughter is enrolled in a local CC community. A hobby farmer in Southwest Michigan, she enjoys both sunrise and sunset from her open property. Laura collects big words, loves challenging books, drinks strong coffee, devours podcasts, grows flowers, overuses commas, and enjoys time together (her love language)!

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100+ Motivational Speech Topics That Guarantee Good Grades

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As a high school or college student, there is a very high probability that your tutor will assign you the task of writing a motivational speech essay. Such assignments require you to research keenly on the most inspirational topics on which to base your speech. Most students find the process of researching motivational speech topics quite draining and time-consuming, which is why we have come up with a comprehensive list of motivational speech ideas that will get you started on your path to attaining the top grades that you envision for yourself. 

In this post, we’ll look at a variety of motivational speech topics that will not only captivate the interest of your audience but also equip you with the skills to deliver a speech that has a deep impact. Whether you want to gain insight into how to give an outstanding speech, even as a research paper subject, or get answers to frequently asked questions regarding how to do so effectively, these motivational topics will save the day.  

What Is the Purpose of a Motivational Speech?

Motivational speeches, whether they are inspiring topics for an academic presentation or a one-minute motivational speech for learners, are intended to stoke enthusiasm and inspire progress.

• Explore the basic features of a powerful speech, such as personalized stories that appeal to emotions and a distinct, resonating message. 
• Examine a variety of topics, from inspiring speech ideas to popular motivating topics, and how they relate to young people’s passions and issues. 
• Emphasize the importance of understanding the audience, particularly in an educational environment where an excellent motivational speech must be meaningful and entertaining. 
• Wrap up by reflecting keenly on the intended impact of your speech. 

A well-written motivational speech should use simple language and aim to maintain clarity throughout. Keep it short and precise to maintain your audience’s attention and engagement.

List of Motivational Speech Topics

Crafting a motivational speech can be a challenging task. If you are struggling to come up with ideas to focus your speech on, then here are some brilliant motivational speech topics to inspire you. We have 100+ captivating motivational speech topic ideas broken down into easy-to-access categories.

Motivation Speech Topics for Youth

If you’re looking to write a motivational speech that specifically targets the youth, here are some inspiring motivational speech topics that you can explore.

• How to fully enjoy your high school experience? 
• How to set yourself up for success? 
• Drawing inspiration from successful entrepreneurs. 
• Adopting a healthy lifestyle in your youth.
• When and how to seek mentorship.
• What you need to know about your first job.
• How to protect your mental health? 
• Overcoming adversity and loss.
• Harnessing the power of social media for social impact.
• Youth leadership in the digital age.

Motivational Speech Topics for Students

If you have been assigned to write a motivational speech that specifically targets students on educational and inspirational matters, here are some interesting motivational speech topics that you should consider.

• Life skills: lessons beyond the classroom.
• The role of personal development in a student’s life.
• The role of teachers in a student’s growth.
• Adaptability: embracing innovation in your learning curve.
• Future trends in education.
• Strategies to succeed in school.
• Overcoming change: how to thrive in new environments.
• The role of student leadership in educational institutions.
• How to avoid procrastination and embrace growth? 
• How to overcome exam anxiety? 

Motivation Speech Topics for Business and Management

You may have been asked to write a speech that addresses businesspeople or aspiring business owners. Here are some motivational speech topics that you can implement.

• How to overcome business challenges during hard economic times? 
• Entrepreneurship 101: Coming up with a vision and mission for your business.
• How to build a customer-centered business? 
• How to raise capital for your business? 
• The importance of creating a vision-driven team.
• Teamwork: The value of collaboration and communication in the workplace.
• Financial management: the backbone of every successful business.
• Developing practical leadership skills for business.
• Purpose-driven enterprises: the role of social impact and sustainability in your business.
• Setting goals for your business: how to turn your vision into practical, actionable steps.

Motivational Funny Speech Topics

To create a funny motivational speech, you will require a combination of humor, inspiration and knowledge of the main topic of discussion. Your speech should deliver a serious topic in a funny and inspiring way. Here are a few funny motivational speech topics to consider. 

• How to find humor in stressful situations? 
• Things to do when you don’t know what to do.
• Fun ways to lose weight.
• Going left when nothing seems to go right.
• Why do men have a love-hate relationship with skinny jeans? 
• Fun ways to make money while studying.
• How to believe in yourself when all else fails? 
• Expensive mistakes that you can avoid on your way to success.
• How to kill time when stuck in traffic.
• Ten ways to raise your mood when you feel low.

Motivational Speech Topics About Science and Technology

If you are planning to write a speech that aims to inspire or educate an audience that is interested in science and technology, then you have a lot of research to delve into. Here are a few motivational speech topics that can point you in the right direction.

• What is the difference between astronomy and astrophysics?
• How to embrace the power of Artificial Intelligence? 
• Cybersecurity: What you need to know and apply to your digital space.
• Understanding how the medicine you take works.
• Understanding the power of your gut health.
• Harnessing the power of renewable energy.
• Renewable energy vs environmental conservation: How solar panels affect the environment.
• Next-generation technology in AI.
• Scientific advancements in biomedical technology.
• Exploring the new frontiers of medicine through pharmaceutical technology.

5-Minute Motivational Speech Topics

The secret to delivering a 5-minute speech is to keep it short and sweet while making precise points in simple language. Here are some motivational speech ideas that you can use.

• How to embrace resilience and overcome life challenges.
• Staying motivated in the pursuit of your dreams.
• Embrace the power of positive thinking.
• Five easy ways to unleash your creativity.
• How to become a better friend? 
• The importance of self-care.
• How to tell when you’re procrastinating? 
• How to prepare for your exam? 
• Ten simple ways to grow your confidence.
• Finding your purpose and working towards it.

Inspirational Speech Topics

If you are looking for some passion speech ideas , we have some motivational speech topics to get you started.

• Unleashing your potential: a personal growth journey.
• The path to self-mastery: personal development strategies.
• Turning ambitions into realities.
• The art of becoming your most excellent self.
• Personal excellence: goal setting and achievement.
• Conquering personal development challenges.
• Self-reflection: crucial to personal growth.
• Developing a healthy self-perception.
• The power of psychological fortitude.
• Lifelong learning: the journey to professional growth.

Motivational Speech Topics About Sport

When addressing an audience of sportspeople, you need to ignite them into winning the game ahead of them. Here are some ignite speech topics that you can explore:

• How physical exercise promotes mental wellness.
• Benefits of fostering team spirit in sports.
• Why do we need more inclusive policies in sports for players with disabilities?
• The vital role of equal sports coverage of female sports.
• Why it is important to encourage children to participate in sports activities.
• Do the benefits of hosting an international sports event outweigh the costs?
• Using sports as a tool for community development and social change.
• We need to encourage more women to participate in male-dominated sports.
• The importance of implementing safety measures in contact sports.
• The role of sports in building resilience and coping skills.

Motivational Speech Topics on Government and Politics

Political issues are often difficult to tackle, so we have compiled a list of motivational speech topics to make your work easier. Use these motivational topics to jumpstart your assignment. 

• Youth leadership in politics: promoting involvement and public participation.
• Promoting social and criminal justice: fostering fairness and diversity in government policies.
• Environmental policy aims to promote environmentally conscious choices for a more sustainable future. 
• Human rights and activism aim to inspire progress and promote justice.
• Political leadership: developing moral and effective administration.
• Civic engagement: emphasizing the value of voting and participation in legislative institutions.
• Motivating a career of dedication and impact in government.
• Fighting corruption: promoting transparency and accountability in politics.
• Improving humanity and inclusion in immigration and refugee policies.
• Encouraging international partnerships and peaceful resolutions through diplomacy.

Medical Persuasive Speech Topics

If you are looking for motivational speech topics to address medical issues, you can build on these ideas of motivational topics .

• The human body: revealing the mysteries and the wonders of human biology.
• Medical research: advancing scientific findings and innovative medical developments.
• The healthcare champions: inspiring the advancement of medical careers.
• Global health equity: driving efforts to enhance access to excellent healthcare. 
• Global disease prevention efforts aim to promote healthy lifestyles and wellness.
• Understanding medical ethics: inspiring ethical decision-making in medical services.
• The impact of healthcare education: motivating the next generation of qualified and ethical healthcare workers.
• Mental health awareness: promoting understanding and providing assistance for mental health.
• Developments in Modern Medicine: Promoting customized treatment.
• Advances in medical technologies: Fostering cutting-edge diagnostics and therapeutics.

Motivational topics encourage people to examine their lives closely and transform them for the better. Although a motivational speaker plays a vital role in strengthening a person’s resolve to achieve a higher quality of life, they often struggle to come up with catchy and empowering motivational speech topics. Using these inspirational speech ideas and motivational speech topics guarantees that you will create a winning speech.

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Scientific breakthroughs: 2024 emerging trends to watch

December 28, 2023

Across disciplines and industries, scientific discoveries happen every day, so how can you stay ahead of emerging trends in a thriving landscape? At CAS, we have a unique view of recent scientific breakthroughs, the historical discoveries they were built upon, and the expertise to navigate the opportunities ahead. In 2023, we identified the top scientific breakthroughs , and 2024 has even more to offer. New trends to watch include the accelerated expansion of green chemistry, the clinical validation of CRISPR, the rise of biomaterials, and the renewed progress in treating the undruggable, from cancer to neurodegenerative diseases. To hear what the experts from Lawrence Liverpool National Lab and Oak Ridge National Lab are saying on this topic, join us for a free webinar on January 25 from 10:00 to 11:30 a.m. EDT for a panel discussion on the trends to watch in 2024.

The ascension of AI in R&D

While the future of AI has always been forward-looking, the AI revolution in chemistry and drug discovery has yet to be fully realized. While there have been some high-profile set-backs , several breakthroughs should be watched closely as the field continues to evolve. Generative AI is making an impact in drug discovery , machine learning is being used more in environmental research , and large language models like ChatGPT are being tested in healthcare applications and clinical settings.

Many scientists are keeping an eye on AlphaFold, DeepMind’s protein structure prediction software that revolutionized how proteins are understood. DeepMind and Isomorphic Labs have recently announced how their latest model shows improved accuracy, can generate predictions for almost all molecules in the Protein Data Bank, and expand coverage to ligands, nucleic acids, and posttranslational modifications . Therapeutic antibody discovery driven by AI is also gaining popularity , and platforms such as the RubrYc Therapeutics antibody discovery engine will help advance research in this area.

Though many look at AI development with excitement, concerns over accurate and accessible training data , fairness and bias , lack of regulatory oversight , impact on academia, scholarly research and publishing , hallucinations in large language models , and even concerns over infodemic threats to public health are being discussed. However, continuous improvement is inevitable with AI, so expect to see many new developments and innovations throughout 2024.

‘Greener’ green chemistry

Green chemistry is a rapidly evolving field that is constantly seeking innovative ways to minimize the environmental impact of chemical processes. Here are several emerging trends that are seeing significant breakthroughs:

• Improving green chemistry predictions/outcomes : One of the biggest challenges in green chemistry is predicting the environmental impact of new chemicals and processes. Researchers are developing new computational tools and models that can help predict these impacts with greater accuracy. This will allow chemists to design safer and more environmentally friendly chemicals.
• Reducing plastics: More than 350 million tons of plastic waste is generated every year. Across the landscape of manufacturers, suppliers, and retailers, reducing the use of single-use plastics and microplastics is critical. New value-driven approaches by innovators like MiTerro that reuse industrial by-products and biomass waste for eco-friendly and cheaper plastic replacements will soon be industry expectations. Lowering costs and plastic footprints will be important throughout the entire supply chain.    
• Alternative battery chemistry: In the battery and energy storage space, finding alternatives to scarce " endangered elements" like lithium and cobalt will be critical. While essential components of many batteries, they are becoming scarce and expensive. New investments in lithium iron phosphate (LFP) batteries that do not use nickel and cobalt have expanded , with 45% of the EV market share being projected for LFP in 2029. Continued research is projected for more development in alternative materials like sodium, iron, and magnesium, which are more abundant, less expensive, and more sustainable.
• More sustainable catalysts : Catalysts speed up a chemical reaction or decrease the energy required without getting consumed. Noble metals are excellent catalysts; however, they are expensive and their mining causes environmental damage. Even non-noble metal catalysts can also be toxic due to contamination and challenges with their disposal. Sustainable catalysts are made of earth-abundant elements that are also non-toxic in nature. In recent years, there has been a growing focus on developing sustainable catalysts that are more environmentally friendly and less reliant on precious metals. New developments with catalysts, their roles, and environmental impact will drive meaningful progress in reducing carbon footprints.  
• Recycling lithium-ion batteries: Lithium-ion recycling has seen increased investments with more than 800 patents already published in 2023. The use of solid electrolytes or liquid nonflammable electrolytes may improve the safety and durability of LIBs and reduce their material use. Finally, a method to manufacture electrodes without solvent s could reduce the use of deprecated solvents such as N-methylpyrrolidinone, which require recycling and careful handling to prevent emissions.

Rise of biomaterials

New materials for biomedical applications could revolutionize many healthcare segments in 2024. One example is bioelectronic materials, which form interfaces between electronic devices and the human body, such as the brain-computer interface system being developed by Neuralink. This system, which uses a network of biocompatible electrodes implanted directly in the brain, was given FDA approval to begin human trials in 2023.

• Bioelectronic materials: are often hybrids or composites, incorporating nanoscale materials, highly engineered conductive polymers, and bioresorbable substances. Recently developed devices can be implanted, used temporarily, and then safely reabsorbed by the body without the need for removal. This has been demonstrated by a fully bioresorbable, combined sensor-wireless power receiver made from zinc and the biodegradable polymer, poly(lactic acid).
• Natural biomaterials: that are biocompatible and naturally derived (such as chitosan, cellulose nanomaterials, and silk) are used to make advanced multifunctional biomaterials in 2023. For example, they designed an injectable hydrogel brain implant for treating Parkinson’s disease, which is based on reversible crosslinks formed between chitosan, tannic acid, and gold nanoparticles.
• Bioinks : are used for 3D printing of organs and transplant development which could revolutionize patient care. Currently, these models are used for studying organ architecture like 3D-printed heart models for cardiac disorders and 3D-printed lung models to test the efficacy of drugs. Specialized bioinks enhance the quality, efficacy, and versatility of 3D-printed organs, structures, and outcomes. Finally, new approaches like volumetric additive manufacturing (VAM) of pristine silk- based bioinks are unlocking new frontiers of innovation for 3D printing.

To the moon and beyond

The global Artemis program is a NASA-led international space exploration program that aims to land the first woman and the first person of color on the Moon by 2025 as part of the long-term goal of establishing a sustainable human presence on the Moon. Additionally, the NASA mission called Europa Clipper, scheduled for a 2024 launch, will orbit around Jupiter and fly by Europa , one of Jupiter’s moons, to study the presence of water and its habitability. China’s mission, Chang’e 6 , plans to bring samples from the moon back to Earth for further studies. The Martian Moons Exploration (MMX) mission by Japan’s JAXA plans to bring back samples from Phobos, one of the Mars moons. Boeing is also expected to do a test flight of its reusable space capsule Starliner , which can take people to low-earth orbit.

The R&D impact of Artemis extends to more fields than just aerospace engineering, though:

• Robotics: Robots will play a critical role in the Artemis program, performing many tasks, such as collecting samples, building infrastructure, and conducting scientific research. This will drive the development of new robotic technologies, including autonomous systems and dexterous manipulators.
• Space medicine: The Artemis program will require the development of new technologies to protect astronauts from the hazards of space travel, such as radiation exposure and microgravity. This will include scientific discoveries in medical diagnostics, therapeutics, and countermeasures.
• Earth science: The Artemis program will provide a unique opportunity to study the Moon and its environment. This will lead to new insights into the Earth's history, geology, and climate.
• Materials science: The extreme space environment will require new materials that are lightweight, durable, and radiation resistant. This will have applications in many industries, including aerospace, construction, and energy.
• Information technology: The Artemis program will generate a massive amount of data, which will need to be processed, analyzed, and shared in real time. This will drive the development of new IT technologies, such as cloud computing, artificial intelligence, and machine learning.

The CRISPR pay-off

After years of research, setbacks, and minimal progress, the first formal evidence of CRISPR as a therapeutic platform technology in the clinic was realized. Intellia Therapeutics received FDA clearance to initiate a pivotal phase 3 trial of a new drug for the treatment of hATTR, and using the same Cas9 mRNA, got a new medicine treating a different disease, angioedema. This was achieved by only changing 20 nucleotides of the guide RNA, suggesting that CRISPR can be used as a therapeutic platform technology in the clinic.

The second great moment for CRISPR drug development technology came when Vertex and CRISPR Therapeutics announced the authorization of the first CRISPR/Cas9 gene-edited therapy, CASGEVY™, by the United Kingdom MHRA, for the treatment of sickle cell disease and transfusion-dependent beta-thalassemia. This was the first approval of a CRISPR-based therapy for human use and is a landmark moment in realizing the potential of CRISPR to improve human health.

In addition to its remarkable genome editing capability, the CRISPR-Cas system has proven to be effective in many applications, including early cancer diagnosis . CRISPR-based genome and transcriptome engineering and CRISPR-Cas12a and CRISPR-Cas13a appear to have the necessary characteristics to be robust detection tools for cancer therapy and diagnostics. CRISPR-Cas-based biosensing system gives rise to a new era for precise diagnoses of early-stage cancers.

MIT engineers have also designed a new nanoparticle DNA-encoded nanosensor for urinary biomarkers that could enable early cancer diagnoses with a simple urine test. The sensors, which can detect cancerous proteins, could also distinguish the type of tumor or how it responds to treatment.

Ending cancer

The immuno-oncology field has seen tremendous growth in the last few years. Approved products such as cytokines, vaccines, tumor-directed monoclonal antibodies, and immune checkpoint blockers continue to grow in market size. Novel therapies like TAC01-HER2 are currently undergoing clinical trials. This unique therapy uses autologous T cells, which have been genetically engineered to incorporate T cell Antigen Coupler (TAC) receptors that recognize human epidermal growth factor receptor 2 (HER2) presence on tumor cells to remove them. This could be a promising therapy for metastatic, HER2-positive solid tumors.

Another promising strategy aims to use the CAR-T cells against solid tumors in conjunction with a vaccine that boosts immune response. Immune boosting helps the body create more host T cells that can target other tumor antigens that CAR-T cells cannot kill.

Another notable trend is the development of improved and effective personalized therapies. For instance, a recently developed personalized RNA neoantigen vaccine, based on uridine mRNA–lipoplex nanoparticles, was found effective against pancreatic ductal adenocarcinoma (PDAC). Major challenges in immuno-oncology are therapy resistance, lack of predictable biomarkers, and tumor heterogenicity. As a result, devising novel treatment strategies could be a future research focus.

Decarbonizing energy

Multiple well-funded efforts are underway to decarbonize energy production by replacing fossil fuel-based energy sources with sources that generate no (or much less) CO2 in 2024.

One of these efforts is to incorporate large-scale energy storage devices into the existing power grid. These are an important part of enabling the use of renewable sources since they provide additional supply and demand for electricity to complement renewable sources. Several types of grid-scale storage that vary in the amount of energy they can store and how quickly they can discharge it into the grid are under development. Some are physical (flywheels, pumped hydro, and compressed air) and some are chemical (traditional batteries, flow batteries , supercapacitors, and hydrogen ), but all are the subject of active chemistry and materials development research. The U.S. government is encouraging development in this area through tax credits as part of the Inflation Reduction Act and a $7 billion program to establish regional hydrogen hubs.

Meanwhile, nuclear power will continue to be an active R&D area in 2024. In nuclear fission, multiple companies are developing small modular reactors (SMRs) for use in electricity production and chemical manufacturing, including hydrogen. The development of nuclear fusion reactors involves fundamental research in physics and materials science. One major challenge is finding a material that can be used for the wall of the reactor facing the fusion plasma; so far, candidate materials have included high-entropy alloys and even molten metals .

Neurodegenerative diseases

Neurodegenerative diseases are a major public health concern, being a leading cause of death and disability worldwide. While there is currently no cure for any neurodegenerative disease, new scientific discoveries and understandings of these pathways may be the key to helping patient outcomes.

• Alzheimer’s disease: Two immunotherapeutics have received FDA approval to reduce both cognitive and functional decline in individuals living with early Alzheimer's disease. Aducannumab (Aduhelm®) received accelerated approval in 2021 and is the first new treatment approved for Alzheimer’s since 2003 and the first therapy targeting the disease pathophysiology, reducing beta-amyloid plaques in the brains of early Alzheimer’s disease patients. Lecanemab (Leqembi®) received traditional approval in 2023 and is the first drug targeting Alzheimer’s disease pathophysiology to show clinical benefits, reducing the rate of disease progression and slowing cognitive and functional decline in adults with early stages of the disease.
• Parkinson’s disease: New treatment modalities outside of pharmaceuticals and deep brain stimulation are being researched and approved by the FDA for the treatment of Parkinson’s disease symptoms. The non-invasive medical device, Exablate Neuro (approved by the FDA in 2021), uses focused ultrasound on one side of the brain to provide relief from severe symptoms such as tremors, limb rigidity, and dyskinesia. 2023 brought major news for Parkinson’s disease research with the validation of the biomarker alpha-synuclein. Researchers have developed a tool called the α-synuclein seeding amplification assay which detects the biomarker in the spinal fluid of people diagnosed with Parkinson’s disease and individuals who have not shown clinical symptoms.
• Amyotrophic lateral sclerosis (ALS): Two pharmaceuticals have seen FDA approval in the past two years to slow disease progression in individuals with ALS. Relyvrio ® was approved in 2022 and acts by preventing or slowing more neuron cell death in patients with ALS. Tofersen (Qalsody®), an antisense oligonucleotide, was approved in 2023 under the accelerated approval pathway. Tofersen targets RNA produced from mutated superoxide dismutase 1 (SOD1) genes to eliminate toxic SOD1 protein production. Recently published genetic research on how mutations contribute to ALS is ongoing with researchers recently discovering how NEK1 gene mutations lead to ALS. This discovery suggests a possible rational therapeutic approach to stabilizing microtubules in ALS patients.

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• LLMs now write lots of science. Good

Easier and more lucid writing will make science faster and better

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M ANY PEople are busily experimenting with chatbots in the hope that generative artificial intelligence ( AI ) can improve their daily lives. Scientists, brainy as they are, are several steps ahead. As we report , 10% or more of abstracts for papers in scientific journals now appear to be written at least in part by large language models. In fields such as computer science that figure rises to 20%. Among Chinese computer scientists, it is a third.

Some see this enthusiastic adoption as a mistake. They fear that vast quantities of poor-quality papers will introduce biases, boost plagiarism and jam the machinery of scientific publication. Some journals, including the Science family, are imposing onerous disclosure requirements on the use of llm s. Such attempts are futile and misguided. llm s cannot easily be policed. Even if they could be, many scientists find that their use brings real benefits.

Research scientists are not just devoted to laboratory work or thinking big thoughts. They face great demands on their time, from writing papers and teaching to filling out endless grant applications. llm s help by speeding up the writing of papers, thereby freeing up time for scientists to develop new ideas, collaborate or check for mistakes in their work.

The technology can also help level a playing-field that is tilted towards native English speakers, because many of the prestigious journals are in their tongue. llm s can help those who do not speak the language well to translate and edit their text. Thanks to LLM s, scientists everywhere should be able to disseminate their findings more easily, and be judged by the brilliance of their ideas and ingeniousness of their research, rather than their skill in avoiding dangling modifiers.

As with any technology, there are worries. Because llm s make it easier to produce professional-sounding text, they will make it easier to generate bogus scientific papers. Science received 10,444 submissions last year, of which 83% were rejected before peer review. Some of these are bound to have been ai -generated fantasies.

llm s could also export, through their words, the cultural environment in which they were trained. Their lack of imagination may spur inadvertent plagiarism, in which they directly copy past work by humans. “Hallucinations” that are obviously wrong to experts, but very believable to everyone else, could also make their way into the text. And most worrying of all, writing can be an integral part of the research process, by helping researchers clarify and formulate their own ideas. An excessive reliance on llm s could therefore make science poorer.

Trying to restrict the use of LLM s is not the way to deal with these problems. In the future they are rapidly going to become more prevalent and more powerful. They are already embedded in word processors and other software, and will soon be as common as spell-checkers. Researchers tell surveys that they see the benefits of generative ai not just for writing papers but for coding and doing administrative tasks. And crucially, their use cannot easily be detected. Although journals can impose all the burdensome disclosure requirements they like, it would not help, because they cannot tell when their rules have been broken. Journals such as Science should abandon detailed disclosures for the use of llm s as a writing tool, beyond a simple acknowledgment.

Science already has many defences against fabrication and plagiarism. In a world where the cost of producing words falls to nothing, these must become stronger still. Peer review, for instance, will become even more important in a gen- ai world. It must be beefed up accordingly, perhaps by paying reviewers for the time they sacrifice to scrutinise papers. There should also be more incentives for researchers to replicate experiments. Hiring and promotion committees at universities should ensure that scientists are rewarded based on the quality of their work and the quantity of new insights they generate. Curb the potential for misuse, and scientists have plenty to gain from their llm amanuenses. ■

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This article appeared in the Leaders section of the print edition under the headline “Can you make this clearer?”

Leaders June 29th 2024

Keir starmer should be britain’s next prime minister, what to make of joe biden’s plans for a second term, simple steps to stop people dying from heatwaves, a pivotal moment for china’s communist party, macron has done well by france. but he risks throwing it all away.

From the June 29th 2024 edition

Discover stories from this section and more in the list of contents

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Paying Your Fair Share: Perceived Fairness and Tax Compliance

We provide evidence on the role of fairness for tax compliance: households are willing to pay more in taxes if they believe that other households are contributing their fair share. We conducted an information-disclosure natural field experiment in the context of property taxes in the United States. We induced exogenous shocks to households' perceptions about the average tax rate paid by other households. We find that a higher perceived average tax rate decreases the probability of filing a tax appeal. Translating our estimates into a money metric, we find that for each additional $1 contributed by the average household, a taxpayer is willing to pay an extra $0.43 in his or her own taxes.

Part of this paper belonged to a longer paper that included analyses from other treatment arms, and which was first posted on September 2020 as NBER Working Paper No. 27816. Since the paper became too long, the original paper was split into this paper and Nathan et al. (2023). We are thankful for excellent comments from Sudiptha Basu, Raj Chetty, Christine Cuny, Julio Elias, Austan Goolsbee, Justin Holz, Steve Levitt, Ningzhong Li, John List, Joel Slemrod, Erzo Luttmer, Anya Nakhmurina, James Poterba, Sutirtha Bagchi, Gurpal Sran, and seminar participants at the NBER-Public Economics, Stanford University, University of Chicago, Yale University, Rutgers Accounting Research Conference, Federal Reserve Bank of Chicago, Universidad de San Andres, the American Economic Association, NTA, ZEW, Journees LAGV, LMU, RIDGE, and AEI. We will make all the code and data publicly available. This project was reviewed and approved in advance by the Institutional Review Board at The University of Texas at Dallas. The experiments were registered in the AEA RCT Registry (#0005992). The original pre-registration was posted on May 24, 2020. However, after receiving interview requests from the media, we removed the pre-registration (we were concerned that the media would divulge the hypotheses listed in the pre-registration and thus contaminate the study). We re-posted the pre-registration on June 16, 2020, after the deadline to file an appeal had passed (and before the data to conduct the analysis became available). Adrian Cadena Medina, Luisa Cefala, Dongwook Chun, Karl Dill, Santiago De Martini, and Xinmei Yang provided superb research assistance. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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In addition to working papers , the NBER disseminates affiliates’ latest findings through a range of free periodicals — the NBER Reporter , the NBER Digest , the Bulletin on Retirement and Disability , the Bulletin on Health , and the Bulletin on Entrepreneurship  — as well as online conference reports , video lectures , and interviews .

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Guest Essay

A Year on Ozempic Taught Me We’re Thinking About Obesity All Wrong

By Johann Hari

Mr. Hari is a British journalist and the author of “Magic Pill: The Extraordinary Benefits — and Disturbing Risks — of the New Weight Loss Drugs.”

Ever since I was a teenager, I have dreamed of shedding a lot of weight. So when I shrank from 203 pounds to 161 in a year, I was baffled by my feelings. I was taking Ozempic, and I was haunted by the sense that I was cheating and doing something immoral.

I’m not the only one. In the United States (where I now split my time), over 70 percent of people are overweight or obese, and according to one poll, 47 percent of respondents said they were willing to pay to take the new weight-loss drugs. It’s not hard to see why. They cause users to lose an average of 10 to 20 percent of their body weight, and clinical trials suggest that the next generation of drugs (probably available soon) leads to a 24 percent loss, on average. Yet as more and more people take drugs like Ozempic, Wegovy and Mounjaro, we get more confused as a culture, bombarding anyone in the public eye who takes them with brutal shaming.

This is happening because we are trapped in a set of old stories about what obesity is and the morally acceptable ways to overcome it. But the fact that so many of us are turning to the new weight-loss drugs can be an opportunity to find a way out of that trap of shame and stigma — and to a more truthful story.

In my lifetime, obesity has exploded, from being rare to almost being the norm. I was born in 1979, and by the time I was 21, obesity rates in the United States had more than doubled . They have skyrocketed since. The obvious question is, why? And how do these new weight-loss drugs work? The answer to both lies in one word: satiety. It’s a concept that we don’t use much in everyday life but that we’ve all experienced at some point. It describes the sensation of having had enough and not wanting any more.

The primary reason we have gained weight at a pace unprecedented in human history is that our diets have radically changed in ways that have deeply undermined our ability to feel sated. My father grew up in a village in the Swiss mountains, where he ate fresh, whole foods that had been cooked from scratch and prepared on the day they were eaten. But in the 30 years between his childhood and mine, in the suburbs of London, the nature of food transformed across the Western world. He was horrified to see that almost everything I ate was reheated and heavily processed. The evidence is clear that the kind of food my father grew up eating quickly makes you feel full. But the kind of food I grew up eating, much of which is made in factories, often with artificial chemicals, left me feeling empty and as if I had a hole in my stomach. In a recent study of what American children eat, ultraprocessed food was found to make up 67 percent of their daily diet. This kind of food makes you want to eat more and more. Satiety comes late, if at all.

One scientific experiment — which I have nicknamed Cheesecake Park — seemed to me to crystallize this effect. Paul Kenny, a neuroscientist at Mount Sinai Hospital in New York, grew up in Ireland. After he moved in 2000 to the United States, when he was in his 20s, he gained 30 pounds in two years. He began to wonder if the American diet has some kind of strange effect on our brains and our cravings, so he designed an experiment to test it. He and his colleague Paul Johnson raised a group of rats in a cage and gave them an abundant supply of healthy, balanced rat chow made out of the kind of food rats had been eating for a very long time. The rats would eat it when they were hungry, and then they seemed to feel sated and stopped. They did not become fat.

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