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In which question is the amount of water the independent variable?

Answer and explanation

Correct answer: How do different amounts of water affect seed germination?

In option A, the experimenter deliberately changes the amount of water, so it is the independent variable. Seed germination or germination rate is the dependent variable because it may change in response to the water amount. In option B, temperature is the independent variable, and in option C, soil type is the independent variable. Exam tip: Identify the factor that is deliberately changed to find the independent variable.

Related tags

Independent VariableScientific InvestigationSeed GerminationWaterExperimental VariablesVariables In An ExperimentExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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