Hypothesis Review

Making a hypothesis... Let's review!

What is a hypothesis

and

how do we write one?

What Is A Hypothesis?

• It's a prediction

• It's an educated guess

• It's a testable explanation to a question

• It's an If...Then statement

​Your hypothesis is an educated guess about what will happen when you do your experiment

Multiple Choice

When is a hypothesis written?

• before you decide on a question

• after the experiment

• before the experiment

• after the conclusion

When Writing A Hypothesis

• First, write If... followed with the independent variable

• Next, write Then... followed with the dependent variable

• Because....why you think that (based on your research)​

Multiple Choice

When writing your hypothesis, what information follows IF?

• dependent variable

• how you know it will happen

• independent variable

• anything

Multiple Choice

When writing a hypothesis, what information do you fill in after THEN?

• dependent variable

• independent variable

• how you know it will happen

• anything good

Testable Question

What effect does studying with music have on student test scores?

Multiple Choice

What is the Independent Variable in the testable question:

What effect does studying with music have on student test scores?

• Studying with music

• Student test scores

Independent Variable

Studying with music

Multiple Choice

What is the Dependent Variable in the testable question:

What effect does studying with music have on student test scores?

• Studying with music

• Student test scores

Dependent Variable

Student test scores

Multiple Choice

What is the correct hypothesis to the testable question:

What effect does studying with music have on student test scores?

• If students study and their test scores increase, then they will listen to music because music helps them to relax

• If students study with music, then their scores will increase because music helps them to relax

• If students study, then their scores will increase

Hypothesis

If students study with music, then their scores will increase because music helps them to relax

Another example

Testable Question

How does the amount of leaves on a tree affect how many birds will build nests in it?

Independent Variable - amount of leaves on a tree

Dependent Variable - amount of birds building nests in the tree

Hypothesis

Hypothesis - IF there are a lot of leaves on the tree, THEN there will be more birds building nests in it, BECAUSE there is more shade to protect the birds.

Multiple Choice

What is a hypothesis?

• the thing changed on purpose in the experiment

• an explanation about what you observed

• using your 5 senses to gather data

• an educated guess about the outcome of an experiment

Multiple Choice

Performing a test or experiment allows you to test your ___________.

• draw conclusions

• hypothesis

• senses

• battery

Multiple Choice

Choose the correct hypothesis for "How will exercising affect your health?"

• IF you have better health, THEN you will exercise.

• IF you exercise, THEN you will have better health.

• Exercising means you're healthy.

Multiple Choice

Which of the following hypotheses is written correctly?

• If I freeze a tennis ball, then it will not bounce as high because the outer shell turns very hard.

• If a tennis ball is frozen, it won't bounce as high as one that is not frozen because it is too hard.

• Frozen tennis balls will not bounce as high.

• If I heat up a tennis ball it will bounce high