Independent and Dependent Variables

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What is an independent variable?

Back

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

Front

What is a dependent variable?

Back

A dependent variable is a variable that is measured or observed in an experiment, and it is affected by changes in the independent variable.

Front

In the context of an event, if the number of people increases, what happens to the number of chairs needed?

Back

The number of chairs needed (dependent variable) increases as the number of people (independent variable) increases.

Front

If the weight of a package increases, how does it affect the cost to mail it?

Back

The cost to mail it (dependent variable) increases as the weight of the package (independent variable) increases.

Front

What is the relationship between the number of students and the amount of jolly ranchers needed?

Back

The amount of jolly ranchers needed (dependent variable) increases as the number of students (independent variable) increases.

Front

How do you identify the independent variable in a scenario?

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The independent variable is identified as the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

How do you identify the dependent variable in a scenario?

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The dependent variable is identified as the factor that is measured or observed in response to changes in the independent variable.

Front

In a study, if the number of students in a class increases, what is the likely effect on the number of laptops needed?

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The number of laptops needed (dependent variable) is likely to increase as the number of students in the class (independent variable) increases.

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What is an example of an independent variable in a scientific experiment?

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An example of an independent variable is the amount of sunlight a plant receives, which can affect its growth.

Front

What is an example of a dependent variable in a scientific experiment?

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An example of a dependent variable is the height of a plant, which may change in response to different amounts of sunlight.