Variables in science

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What is a variable in science?

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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 manipulated or changed in an experiment to observe its effect 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 controlled variable?

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

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What is the purpose of a hypothesis in an experiment?

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A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

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What is the difference between observation and inference?

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Observation is the act of noting and recording something using the senses, while inference is a conclusion drawn from observations.

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What is another term for the dependent variable?

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The dependent variable is also known as the responding variable.

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What is the role of constants in an experiment?

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Constants are conditions that are kept the same throughout an experiment to ensure that the test is fair.

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How do you identify the independent variable in an experiment?

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The independent variable is identified as the one that is changed or controlled by the experimenter.

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

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A control group is used as a standard for comparison to determine the effect of the independent variable.