Scientific Variables

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What is an independent variable?

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The 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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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 hypothesis?

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

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What is the first step in a scientific experiment?

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The first step in a scientific experiment is to identify a question or problem that needs to be investigated.

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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 does it mean to conduct an experiment?

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To conduct an experiment means to carry out a procedure to test a hypothesis and gather data.

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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 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 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).

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Why is it important to repeat experiments?

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Repeating experiments is important to verify results and ensure that findings are reliable and not due to chance.