Independent, Dependent, and Controlled Variables

Front

What is an Independent Variable?

Back

The one factor that a scientist changes during an experiment.

Front

What is a Dependent Variable?

Back

The variable that is measured in an experiment.

Front

What is a Controlled Variable?

Back

Factors that are kept constant to ensure a fair test.

Front

In an experiment, what does the Independent Variable affect?

Back

The Dependent Variable.

Front

What is the purpose of a Controlled Variable?

Back

To ensure that the experiment tests only the effect of the Independent Variable.

Front

Example of an Independent Variable in a plant growth experiment?

Back

The amount of sunlight the plants receive.

Front

Example of a Dependent Variable in a paper helicopter experiment?

Back

The amount of time it takes for the helicopter to hit the ground.

Front

What is the relationship between Independent and Dependent Variables?

Back

The Independent Variable is manipulated to observe its effect on the Dependent Variable.

Front

Why is it important to have Controlled Variables?

Back

To eliminate other factors that could influence the outcome of the experiment.

Front

In Cindy's plant experiment, what was the Controlled Variable?

Back

The type of plant and the amount of water given.