Identifying Variables

Front

What is a control variable?

Back

A factor or condition in an experiment that is kept the same to ensure that the results are valid.

Front

What is the independent variable in an experiment?

Back

The one factor that is changed or manipulated by the experimenter.

Front

What is the dependent variable in an experiment?

Back

The factor that is measured or observed in response to changes in the independent variable.

Front

In an experiment, if you are testing how different liquids affect plant growth, what is the independent variable?

Back

The type of liquid given to the plants (e.g., water, apple juice, milk).

Front

In Daniel's shoe-cleaning experiment, what is the independent variable?

Back

The two different cleaning products used.

Front

Why is it important to keep control variables constant in an experiment?

Back

To ensure that the results are due to the independent variable and not other factors.

Front

What does it mean to measure the dependent variable?

Back

It means to observe and record the outcome of the experiment based on changes made to the independent variable.

Front

Give an example of a control variable in an experiment testing plant growth.

Back

The amount of sunlight each plant receives.

Front

What is the purpose of an independent variable in an experiment?

Back

To test how changes in this variable affect the dependent variable.

Front

If you change the height from which a ball is dropped, what is the dependent variable?

Back

The height that the ball bounces.