Scientific Method and Variables

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What is the Scientific Method?

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A systematic process used for scientific investigation, involving observation, hypothesis formulation, experimentation, and conclusion.

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What is a dependent variable?

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The variable that is measured or observed in an experiment; it responds to changes in the independent variable.

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What is an independent variable?

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The variable that is changed or controlled in an experiment to test its effects on the dependent variable.

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How does changing the independent variable affect the dependent variable?

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Changing the independent variable can cause changes in the dependent variable, which is measured to see the effect.

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What is a control group?

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A group in an experiment that does not receive the treatment or independent variable, used for comparison.

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Why is it important to have a control in an experiment?

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A control group helps to isolate the effects of the independent variable by providing a baseline for comparison.

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What is a hypothesis?

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

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What is the purpose of conducting experiments?

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To test hypotheses and determine cause-and-effect relationships between variables.

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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 an example of a dependent variable in a plant growth experiment?

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Plant growth measured in height or number of leaves.