Variables

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 dependent variable?

Back

A dependent variable is the factor that is measured or observed in an experiment, which is affected by the independent variable.

Front

What is a control variable?

Back

A control variable is a factor that is kept constant throughout an experiment to ensure that the results are due to the independent variable.

Front

In an experiment, what does it mean to have a constant?

Back

A constant is a variable that does not change during the experiment, allowing for a fair test.

Front

What is the purpose of a hypothesis in an experiment?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

How can you identify the independent variable in a question?

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The independent variable is usually the one that is manipulated or changed by the experimenter.

Front

How can you identify the dependent variable in a question?

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The dependent variable is usually the outcome that is measured in response to changes in the independent variable.

Front

What is the relationship between independent and dependent variables?

Back

The independent variable affects the dependent variable; changes in the independent variable lead to changes in the dependent variable.

Front

Give an example of an independent variable in a study about plant growth.

Back

The amount of sunlight the plants receive.

Front

Give an example of a dependent variable in a study about studying time and grades.

Back

The students' grades.