Unit 1: The Scientific Method & Experimental Variables

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What is the Scientific Method?

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A systematic process used for scientific investigation, involving observation, hypothesis formation, experimentation, data collection, and conclusion.

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What is a hypothesis?

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

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What is a controlled experiment?

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An experiment where only one variable is changed at a time to isolate its effects.

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What is a variable in an experiment?

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Any factor, trait, or condition that can exist in differing amounts or types.

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What is an independent variable?

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The variable that is deliberately changed or manipulated in an experiment.

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What is a dependent variable?

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The variable that is measured or observed in response to changes in the independent variable.

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What is quantitative data?

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Data that can be measured and expressed numerically, such as temperature or height.

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What is qualitative data?

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Data that describes qualities or characteristics and is often subjective, such as color or texture.

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Why is it important to control variables in an experiment?

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To ensure that the results are due to the independent variable and not other factors.

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What is a controlled variable?

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A variable that is kept constant throughout an experiment to ensure a fair test.