Types of Experiments

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What is an experiment?

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An experiment is a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

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What is a variable in an 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 an independent variable?

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The independent variable is the variable that is deliberately changed or manipulated in an experiment to observe its effect.

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What is a dependent variable?

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The dependent variable is the variable 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 group?

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A control group is a group in an experiment that does not receive the treatment or independent variable, used as a benchmark to measure how the other tested subjects do.

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Why is it important to repeat experiments?

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Repeating experiments is important to ensure that results are consistent and reliable, confirming the validity of the findings.

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What is a hypothesis?

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A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

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What is the purpose of a scientific experiment?

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The purpose of a scientific experiment is to test a hypothesis, gather data, and draw conclusions based on 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 variables constant except for the independent variable to ensure that any changes in the dependent variable are due to the manipulation 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 (e.g., color, texture), while quantitative data involves numerical measurements (e.g., height, weight).