variables

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What is a variable in an experiment?

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A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

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What is an independent variable?

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

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What is a dependent variable?

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

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What is a constant in an experiment?

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A constant is a factor that remains the same throughout an experiment to ensure that the test results are valid.

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What is the purpose of a control in an experiment?

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A control is used as a standard for comparison to ensure that the results of the experiment are due to the independent variable.

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How do you identify the independent variable in a question?

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

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How do you identify the dependent variable in a question?

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Look for the factor that is being measured or observed as a result of changes in the independent variable.

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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.

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What is an example of an independent variable?

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In an experiment testing how sunlight affects plant growth, the amount of sunlight is the independent variable.

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What is an example of a dependent variable?

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In an experiment testing how sunlight affects plant growth, the height of the plants is the dependent variable.