Independent & Dependent Variables

Front

What is an independent variable?

Back

The variable in an experiment that is changed or controlled by the scientist.

Front

What is a dependent variable?

Back

The variable in an experiment that is measured or observed to see how it is affected by the independent variable.

Front

In an experiment, what does the independent variable affect?

Back

The dependent variable.

Front

What is an example of an independent variable in an experiment about plant growth?

Back

The amount of sunlight the plants receive.

Front

What is an example of a dependent variable in an experiment about plant growth?

Back

The height of the plants.

Front

If you change the amount of water given to a plant, what is the independent variable?

Back

The amount of water.

Front

If you measure how tall a plant grows with different fertilizers, what is the dependent variable?

Back

The height of the plant.

Front

Why is it important to have a constant in an experiment?

Back

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

Front

What is a constant in an experiment?

Back

A factor that remains the same throughout the experiment.

Front

In Penelope's cookie experiment, what is the dependent variable?

Back

The hardness of the cookies.