How to write a good scientific hypothesis

A look at the work of Sir Isaac Newton and Albert Einstein, more than years apart, shows good hypothesis-writing in action.

Examples of Hypothesis

There is no clear indication of what will be measured to evaluate the prediction. It allows for predictions that will occur in new circumstances. We set out to prove or disprove the hypothesis.


As Dave explains, "A hypothesis is a possible explanation for something that is observed in nature. You may find many studies similar to yours have already been conducted.

This goes back to the point that nature is complex—so complex that it takes more than a single experiment to figure it all out because a single experiment could give you misleading data. When printing this document, you may NOT modify it in any way.

A good hypothesis is written in clear and simple language.

Therefore, you would conduct your research using a statistical hypothesis, or a sample of the Savannian population. That seems like an obvious statement, right? For example, let us say that you hypothesize that earthworms do not exist in places that have very cold winters because it is too cold for them to survive.

The above hypothesis is too simplistic for most middle- to upper-grade science projects, however. A logical hypothesis is a proposed explanation possessing limited evidence. Roses watered with liquid Vitamin B grow faster than roses watered with liquid Vitamin E.

Make sure your hypothesis is a specific statement relating to a single experiment. The hypothesis is an educated, testable prediction about what will happen.

This helps ensure that your statement is specific enough.

A Strong Hypothesis

State your hypothesis as concisely, and to the point, as possible. A hypothesis is usually written in a form where it proposes that, if something is done, then something else will occur. Answering some scientific questions can involve more than one experiment, each with its own hypothesis. Instead, you make an "educated guess" based on what you already know and what you have already learned from your research.

My health improves during the times when I drink green tea only, as opposed to root beer only. Included the independent and dependent variables in the hypothesis statement. Larger animals of the same species expend more energy than smaller animals of the same type.

Variables in Your Science Fair Project. This statement is speculation, not a hypothesis. A null hypothesis H0 exists when a researcher believes there is no relationship between the two variables, or there is a lack of information to state a scientific hypothesis.

Then she uses that information to form a tentative answer to her scientific question. Plants need many types of nutrients to grow. A statistical hypothesis is an examination of a portion of a population.

If I never water my plant, it will dry out and die. Fertilizer adds those nutrients to the soil, thus allowing plants to grow more. If you keep in mind the format of a well-constructed hypothesis, you should find that writing your hypothesis is not difficult to do.

Be logical and use precise language.Learn the elements of a good hypothesis and get examples of experimental hypotheses you can test.

You may intentionally write your hypothesis as a null hypothesis or no-difference hypothesis to establish a relationship between the variables. Scientific Hypothesis Examples.

Learn the Scientific Method Steps. We write a hypothesis. We set out to prove or disprove the hypothesis. What you "think" will happen, of course, should be based on your preliminary research and your understanding of the science and scientific principles involved in your proposed experiment or study.

Write your hypothesis down as you develop it—you’ll be glad you did. using first person and active voice is acceptable in scientific reports. Most readers find that this style of writing conveys information more clearly and concisely.

How to Write and Publish a Scientific Paper. 4th edition.

How to Write a Hypothesis

Phoenix, AZ: Oryx Press, A scientific hypothesis is the initial building block in the scientific method. Many describe it as an "educated guess," based on prior knowledge and observation. While this is true, the. A null hypothesis (H0) exists when a researcher believes there is no relationship between the two variables, or there is a lack of information to state a scientific hypothesis.

This is something to attempt to disprove or discredit. The 5 Components of a Good Hypothesis. To make sure that your hypotheses can be supported or refuted by an experiment, you will want to include each of these elements: After you write a hypothesis, break it down into its five components to make sure that you haven’t forgotten anything.

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How to write a good scientific hypothesis
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