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A hypothesis states that cloth will dry faster in sunlight than in shade. What should remain the same for a fair test?

Answer and explanation

Correct answer: The size of the cloth and its initial wetness

For a valid comparison, the cloths should have the same size and the same amount of water at the start. Then any difference in drying rate can mainly be linked to sunlight versus shade. Option B is incorrect because light condition is the variable being changed. Exam tip: In a fair test, change only one variable and control the other important variables.

Related tags

Fair TestControlled VariablesHypothesisExperimentationDryingSunlightHypothesis And ExperimentationExploration: Entering The World Of Secondary Science

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