Writing Hypotheses

Writing Hypotheses

And Identifying Variables

Things To Know About 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

When Writing A Hypothesis

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

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

Form A Hypothesis

• From a question or research problem

• What effect does protein have on muscle mass?

• Then identify the variables in the question.

Multiple Select

What effect does protein have on muscle mass? The responding, or dependent variable is __.

• muscle mass

• effect of protein

Multiple Select

What effect does protein have on muscle mass? The manipulated, or independent variable is __.

• muscle mass

• effect of protein

Writing The Hypothesis

• Write IF (followed by independent variable)

• For example, If protein is eaten (then followed by dependent variable)

• Now, let's put it together. If protein is eaten, then muscle mass will increase.

Multiple Choice

Which brand of soap gets rid of germs the best? Select the hypothesis for the question.

• I like Irish spring soap because it makes me smell good.

• Sometimes when I go to the store my sister tells me to bring her something back.

• If antibacterial soap is used, then the amount of germs decrease by 99%.

• Breanna uses soap because it gets rid of germs.

Multiple Choice

Which brand of sneakers will allow you to jump this highest? What is the hypothesis for this question?

• If I wear NIke brand sneakers, then I will jump higher in the game.

• I like to play basketball becasue someday I will play in the NBA.

• Wearing sneakers will make me feel better in the game.

Writing Hypotheses Summary

• When forming a hypothesis, write an if...then statement.

• Start hypothesis with If, followed by the independent variable and supporting words

• Next, write Then, followed by the dependent variable and supporting words

Let's Review

What's a hypothesis?

How do we write a hypothesis?