Scientific Experimentation and Data Analysis Flashcard

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What is a variable in a scientific experiment?

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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 the independent variable?

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The independent variable is the factor that is changed or manipulated in an experiment to test its effects.

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What is the dependent variable?

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The dependent variable is the factor that is measured or observed in an experiment, which is affected by the independent variable.

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What does it mean to keep variables constant?

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Keeping variables constant means to keep certain factors the same throughout the experiment to ensure that the test 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; it does not receive the experimental treatment.

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Why is it important to have a hypothesis before conducting an experiment?

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A hypothesis provides a testable prediction that guides the direction of the experiment.

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What is data analysis in scientific research?

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Data analysis involves examining, cleaning, transforming, and modeling data to discover useful information and support decision-making.

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What is the significance of replicating experiments?

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Replicating experiments helps to confirm findings and ensures that results are reliable and applicable in different settings.

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What is qualitative data?

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Qualitative data is descriptive information that cannot be measured numerically, such as colors, textures, or feelings.

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What is quantitative data?

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Quantitative data is numerical information that can be measured and expressed in numbers, such as height, weight, or temperature.