Independent and Dependent Variables

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What is an independent variable?

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The independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

Tags

NGSS.MS-PS2-2

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What is a dependent variable?

Back

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

Front

In an experiment, what does the controlled variable refer to?

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Controlled variables are factors that are kept constant throughout an experiment to ensure that the results are due to the independent variable.

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How does watching TV during studying affect a student’s test grades?

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In this scenario, the student's grades are the dependent variable.

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If Dilcia wants to know how drinking milk affects Monica's growth, what is the independent variable?

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The independent variable is drinking milk.

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What happens to an apple’s freshness if they are refrigerated?

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In this experiment, the freshness of the apple is the dependent variable.

Tags

NGSS.MS-LS1-5

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What is the one factor that a scientist changes during an experiment?

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This factor is known as the independent variable.

Tags

NGSS.MS-PS2-2

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Does the flavor of ice cream affect how fast the ice cream melts?

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In this case, the flavor of ice cream is the independent variable.

Tags

NGSS.MS-PS3-4

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Why is it important to identify independent and dependent variables in an experiment?

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Identifying these variables helps in understanding the relationship between factors and in designing effective experiments.

Tags

NGSS.MS-PS2-2

Front

Can there be more than one independent variable in an experiment?

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While it's possible, having multiple independent variables can complicate the results and make it harder to determine their individual effects.

Tags

NGSS.MS-PS2-2