Identifying Variables

Front

What is a prediction or educated guess called in an experiment?

Back

Hypothesis

Front

In an experiment, what is the variable that you can change called?

Back

Independent Variable

Front

What is the variable that you measure in an experiment?

Back

Dependent Variable

Front

What is a variable that is kept constant in an experiment?

Back

Controlled Variable

Front

True or False: A hypothesis must always be correct.

Back

False

Front

What is the purpose of a hypothesis in an experiment?

Back

To provide a testable prediction.

Front

If you are testing how sunlight affects plant growth, what is the independent variable?

Back

Amount of sunlight

Front

If you are testing how sunlight affects plant growth, what is the dependent variable?

Back

Plant growth

Front

What is the difference between independent and dependent variables?

Back

Independent variables are changed by the experimenter; dependent variables are measured.

Front

Why is it important to have controlled variables in an experiment?

Back

To ensure that the results are due to the independent variable only.