Scientific Variables

Front

What is a dependent variable?

Back

A dependent variable is the factor that is measured in an experiment. It changes in response to the independent variable.

Front

What is an independent variable?

Back

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

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the results are valid.

Front

In an experiment, if the type of shoe affects the speed of a runner, what is the dependent variable?

Back

The speed of the runner.

Front

In an experiment, if the flavor of ice cream affects how fast it melts, what is the independent variable?

Back

The flavor of ice cream.

Front

What is the purpose of identifying variables in an experiment?

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Identifying variables helps to understand the relationship between different factors and how they affect the outcome of the experiment.

Front

If students study in silence or with the television on, what is the dependent variable?

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The score on the test.

Front

What is the relationship between independent and dependent variables?

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The independent variable is manipulated to observe its effect on the dependent variable.

Front

Why is it important to control variables in an experiment?

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Controlling variables ensures that the experiment tests only the effect of the independent variable on the dependent variable.

Front

What is an example of a controlled variable in a study about plant growth?

Back

The amount of water given to each plant.