Identifying Variables

Front

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.

Front

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.

Front

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 control variable?

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

Front

What is the purpose of repeating experiments?

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Repeating experiments helps to verify results and ensure that they are consistent and reliable.

Front

In the experiment 'Does eating breakfast improve test scores?', what is the independent variable?

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The independent variable is whether or not the participants eat breakfast.

Front

In the experiment 'Do tall people jump further than short people?', what is the independent variable?

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The independent variable is the height of the person.

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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.

Front

Why is it important to identify variables in an experiment?

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Identifying variables helps to clarify the focus of the experiment and ensures that the results are valid.

Front

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

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An example of a control variable could be the amount of sunlight each plant receives.