Scientific Variables

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What is an independent variable?

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The independent variable is the one thing that a scientist changes in an experiment.

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What is an experimental group?

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The experimental group is the group that is affected by the independent variable or the group that is changed.

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In an experiment, what is the dependent variable?

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The dependent variable is the variable that is being measured or observed; it is the result or effect.

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What is a control group?

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The control group is the group in an experiment that does not receive the independent variable and is used for comparison.

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What is a conclusion in scientific research?

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A conclusion is the summary at the end of an experiment that explains the results.

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What does it mean to control variables in an experiment?

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Controlling variables means keeping all other factors constant except for the independent variable to ensure a fair test.

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What is the purpose of a hypothesis?

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

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How does one identify the independent variable in an experiment?

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The independent variable is identified as the factor that is intentionally changed or manipulated by the scientist.

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What is the role of data in scientific experiments?

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Data is the information collected during an experiment, which is used to analyze the results and draw conclusions.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.