Scientific Variables (F24)

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What is a scientific variable?

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

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What are the two main types of variables in an experiment?

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Independent variable and dependent variable.

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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 an 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 control variable?

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A control variable is a factor that is kept constant to ensure that any changes in the dependent variable are due to the independent variable.

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How do you identify the independent variable in an experiment?

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The independent variable is usually the one that is manipulated or changed by the experimenter.

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How do you identify the dependent variable in an experiment?

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The dependent variable is usually the outcome that is measured in response to changes in the independent variable.

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

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The control group serves as a baseline to compare the effects of the independent variable.

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What type of graph is best for showing the relationship between two variables?

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A scatter plot or line graph is best for showing the relationship between two variables.

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What does it mean to compare different groups in an experiment?

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Comparing different groups involves analyzing how different conditions or treatments affect the dependent variable.