Science Variables

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What is a dependent variable?

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The dependent variable is what you measure or observe in an experiment. It is affected by changes in the independent variable.

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What is an independent variable?

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The independent variable is the factor that you change or manipulate in an experiment to see how it affects the dependent variable.

Front

In an experiment, what is a controlled variable?

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

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 influence the outcome of the experiment.

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What is an example of a dependent variable in a plant growth experiment?

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The height of the plant is an example of a dependent variable, as it is measured to see how it responds to changes in the independent variable.

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

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The temperature at which the experiment is conducted is an example of an independent variable.

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Why is it important to have a control group in an experiment?

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A control group provides a baseline for comparison, helping to determine the effect of the independent variable.

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What does it mean to manipulate a variable in an experiment?

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To manipulate a variable means to change it intentionally to observe how it affects the dependent variable.

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How can you identify the independent variable in a question?

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Look for the factor that is being changed or tested in the experiment.

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.