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Updated:  30 Oct 2018

A teaching presentation discussing the development of a scientific hypothesis.

Editable:  PowerPoint

Pages:  10 Pages

• Curriculum Curriculum:  AUS V8, NSW, VIC, AUS V9

Years:  4 - 6

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This Teaching Presentation introduces the students to the development of a scientific hypothesis.

Use this teaching resource when investigating the scientific method in science lessons .

This presentation covers the following topics:

• what is a hypothesis
• a hypothesis in science
• developing a scientific hypothesis
• the two ‘-er’s

A class activity scaffolding investigation and independent activity have been included at the end of the presentation.

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Formulation of hypothesis and testing

Published by Francis Lee Modified over 6 years ago

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Presentation on theme: "Formulation of hypothesis and testing"— Presentation transcript:

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Hypothesis PPT Presentation | PDF for Free Download

HYPOTHESIS PPT Presentation

Also See: Non Technical Topics

A hypothesis (plural hypotheses) may be a planned clarification for a development. Scientists typically base scientific hypotheses on previous observations that can’t satisfactorily be explained with the accessible scientific theories. Although the words “hypothesis” and “theory” are typically used synonymously, a scientific hypothesis isn’t identical to a theory. An operating hypothesis may be a provisionally accepted hypothesis planned for additional analysis.

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Imagine you have got a test in school tomorrow. You keep out late and see a motion-picture show with friends. you recognize that once you study the night before, you get sensible grades. What does one suppose can happen on tomorrow’s test?

HYPOTHESIS PPT | PDF for Free Download

When you answered this question, you shaped a hypothesis. A hypothesis could be a specific, testable prediction. It describes in concrete terms what you expect can happen during a bound circumstance. Your hypothesis could be, ‘If not studying lowers test performance and that I don’t study, then I’ll get a low grade on the test.’

Purpose of Hypothesis:

A hypothesis is employed in an experiment to outline the link between 2 variables. the aim of a hypothesis is to search out the solution to an issue. A formalized hypothesis can force us to accept what results we must always rummage around for in an experiment. The first variable is termed the independent variable or variable quantity. this is often the part of the experiment which will be modified and tested. The variable quantity happens 1st and may be thought of the explanation for any changes in the outcome. the result is termed the dependent variable. The independent variable in our previous example isn’t learning for a test. The dependent variable that you simply are using to measure outcome is your test score.

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Let’s use the previous example once more, for example, these ideas. The hypothesis is checkable as a result of you may receive a score on your test performance. it’s measurable as a result of you’ll compare check scores received from once you did study and check scores received from once you didn’t study.

A hypothesis should possess the following features:

• It should explain what you expect to happen
• It should be clear
• It should be understandable
• It should be testable
• It should be measurable
• It should contain a dependent variable
• It should contain an independent variable

Developing a Hypothesis:

Another vital side of a hypothesis is that it ought to be supported analysis. bear in mind that the aim of a hypothesis is to search out the solution to a matter. the primary factor you ought to do if you wish to answer a matter is to search out the maximum amount info on the subject as you’ll be able to. Before you return up to a particular hypothesis, pay your time doing an analysis. Then, begin thinking of queries you continue to have. When totally researching your question, you ought to have an informed guess regarding however things work. This guess regarding the solution to your question is wherever your hypothesis comes from.

Let’s imagine that you simply need to grasp why the leaves on the tree in your yard change color in the autumn. First, you’d analysis this development. You observe what you see happen and read concerning the topic. You discover that the color amendment happens once the temperature cools. What question will this data cause you to ask? You come back up with the subsequent question: ‘Does temperature cause the leaves to vary color on the tree in my front yard?’ Next, you raise yourself if this will be tested. If it is tested, you may write a hypothesis that states what you expect to search out. Your hypothesis can be ‘If lower temperatures cause leaves to vary color and therefore the temperature close a tree is reduced, then the leaves can change color.’

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Scientific Project Flowchart:

The below flowchart explain about the developing of hypothesis in a scientific project:

Fig1: Flowchart of a Scientific Project

In the above diagram, we can see the implementation of hypothesis in a scientific project.

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Co ntent of the Seminar and PDF for Hypothesis PPT

• Contribution
• Types of Hypothesis
• Characteristics

Here we are giving you Hypothesis Seminar and PPT with PDF. All you need to do is just click on the download link and get it.

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Developing A Research Question and Hypothesis

Nov 08, 2019

140 likes | 221 Views

Developing A Research Question and Hypothesis. Research question. How to create a good research question. A research question guides and centers your research It should be clear and focused It should ideally be something that you are interested in or care about.

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• dependent variable
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Presentation Transcript

Research question How to create a good research question

A research question guides and centers your research • It should be clear and focused • It should ideally be something that you are interested in or care about

How do you formulate a good research question? • Choose a general topic of interest • Conduct preliminary research on this topic in current periodicals and journals to see what research has already been done • This will help determine what kinds of questions the topic generates • Once you have conducted preliminary research, consider: • Who is the audience? • Is its an academic essay, or will it be read by a more general public? • Start asking open-ended “How?” “What?” and “Why?” questions • Then evaluate the possible responses to those questions

Checklist of Potential Research Questions • Is the research question something I/others care about? Is it arguable? • Is the research question a new spin on an old idea, or does it solve a problem? • Is it too broad or too narrow? • Is the research question researchable within the given time frame and location? • What information is needed?

Independent and dependent variables • A variable is an object, event, idea, feeling, time period, or any other type of category you are trying to measure • There are two types of variables, independent and dependent • An independent variable stands alone and is not changed by other variables you are trying to measure • When looking for the relationship between variables, you are trying to see if the independent variable causes some kind of change in other variables, or dependent variables • A dependent variable is a variable that depends on other factors • Example: a test score could depend on how much you studied, how much sleep you got the night before the test, or even how hungry you were when you took the test • When looking for the relationship between variables, you are trying to find out what makes the dependent variable change the way it does • The independent variable causes a change in the dependent variable and it is not possible that the dependent variable could cause a change in the independent variable

hypothesis How to create a good scientific answer to the question

A strong hypothesis should meet three fundamental criteria • Needs to state the hypothesis in proper phrasing (i.e. grammar, punctuation • Needs to clearly establish the relationship between the variables • Needs to establish that said relationship is scientifically provable • Always make sure the hypothesis being tested matches your project and the preliminary research conducted • Remember, a hypothesis is not a question, but a statement

Examples of a hypothesis • Water levels affect the amount of lice suffered by rainbow trout • Good general statement, but it does not guide how to design the experiment or research • Rainbow trout suffer more lice when water levels are low • Provides some directionality, but statement is still not testable • Rainbow trout suffer more lice in low water conditions because there is less oxygen in the water • Statement is testable; It established variables to see if there is a correlation between water levels and the number of lice on fish

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Formulating Hypotheses - PowerPoint PPT Presentation

Formulating Hypotheses

An hypothesis is really a temporary explanation, a kind of educated guess about ... he or she predicts that carbon dioxide can be detected as an organism digests food. ... – powerpoint ppt presentation.

• Science advances by formulating and testing hypotheses. An hypothesis is really a temporary explanation, a kind of educated guess about what will happen under certain conditions.
• A hypothesis usually begins as an answer to a question.
• Question Do plants need light to grow?
• Ex. If green plants need light to grow, then only plants kept in light will display growth.
• Most times it is an If then statement.
• But ALWAYS is a statement that has a definitive answer, or one that can be answered yes or no.
• Do living things give off CO2 when they digest food?
• A scientist thinks that living things give off carbon dioxide gas as they break down food. He or she predicts that carbon dioxide can be detected as an organism digests food.
• Some students were investigating what made their classmates get colds. One student believed that those who took vitamin C every day got fewer colds than the rest of the students.
• Another student was interested in raising tropical fish. She believed that fish that were given Phillip Chons Formula 1 food would produce more offspring than those fed Kaitlyn Gortners Golden Flakes.
• You can prove them to be untrue, but you cannot prove them to be true.
• This means you can only support your hypothesis.
• The more a hypothesis is supported, the greater its power to explain the phenomenon.
• Bacteria are microscopic creatures found almost everywhere. They are useful to biologists in many different kinds of experiments. For each of the following problems involving bacteria, form an hypothesis to make a prediction.
• Does the temperature at which bacteria are grown affect their rate of reproduction?
• Does using up the nutrients they are feeding on affect the rate of reproduction of bacteria?
• Some bacteria require certain vitamins in the material in which they are grown. Does bacterium X require vitamin B12 for reproduction?
• Does aspirin inhibit the reproduction of bacteria?
• The questions and hypotheses you develop must be typed.
• I do not accept hand-written hypotheses.
• STD LAB set up follows.
• Tomorrow we will be mating with each other. You will have five partners that you will share bodily fluids with (one at a time). One individual in class will be contaminated with an STD at the start of the experiment.
• What question(s) could be asked about the spread of the disease in class? Choose one question to answer. Next, write a testable hypothesis that predicts the results (a best guess answer to the question).
• Your hypothesis must be signed off by me before you can begin the lab.

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