Independent and Dependent Variables

Front

What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the variable that is measured and affected in an experiment. It responds to changes in the independent variable.

Front

In the relationship between hours studied and test scores, which is the independent variable?

Back

The number of hours studied.

Front

In the relationship between the number of students and the number of laptops needed, which is the dependent variable?

Back

The number of laptops needed.

Front

True or False: The dependent variable is what you measure in an experiment.

Back

True

Front

True or False: The independent variable is what you change in an experiment.

Back

True

Front

If you increase the amount of sunlight a plant receives, what is the independent variable?

Back

The amount of sunlight.

Front

If you are testing how different fertilizers affect plant growth, what is the dependent variable?

Back

The growth of the plants.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

To understand how changes in one variable affect another.

Front

In a study measuring the effect of temperature on ice cream melting, what is the independent variable?

Back

The temperature.