Unit 1 exam review

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What is an independent variable?

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An independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

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What is a dependent variable?

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A 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 constant in an experiment?

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A constant is a factor that remains the same throughout an experiment to ensure that the results are valid.

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What is the purpose 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.

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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.

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What is a hypothesis?

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A hypothesis is a testable prediction about the relationship between two or more variables.

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What is the scientific method?

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The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is a bar graph used for?

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A bar graph is used to compare different groups or categories of data.

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What is a line graph used for?

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A line graph is used to show trends over time or continuous data.

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What is the importance of using units in measurements?

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Using units in measurements ensures clarity and consistency in scientific communication.