Identifying Variables

Front

What is a control in an experiment?

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A control is a standard against which the results of an experiment are compared. It is the group that does not receive the experimental treatment.

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What is a dependent variable?

Back

The dependent variable is the outcome or response that is measured in an experiment. It depends on the independent variable.

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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.

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What is the purpose of using a control group in an experiment?

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The purpose of a control group is to isolate the effect of the independent variable by providing a baseline for comparison.

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How do you identify the dependent variable in an experiment?

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The dependent variable can be identified by asking what is being measured or observed in response to changes in the independent variable.

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What is the difference between independent and dependent variables?

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The independent variable is what you change, while the dependent variable is what you measure.

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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 the experiment to ensure that the test results are valid.

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Why is it important to have multiple trials in an experiment?

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Multiple trials help to ensure that the results are reliable and can be reproduced, reducing the impact of random errors.

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

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An example of an independent variable in a plant growth experiment could be the type of fertilizer used.

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What is an example of a dependent variable in a dog training experiment?

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An example of a dependent variable in a dog training experiment could be the amount of time the dog takes to respond to commands.