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In which experiment is time most appropriately measured as the dependent variable?

Answer and explanation

Correct answer: Measuring the time taken for wax to melt at different temperatures

In option A, temperature is deliberately changed, so it is the independent variable. The time taken by wax to melt is measured as a result of that change; therefore, time is the dependent variable. In option C, changing mass is an action in the procedure, not the measured outcome. Exam tip: the variable recorded as the result of an experimental change is usually the dependent variable.

Related tags

Dependent VariableIndependent VariableTime MeasurementWax MeltingTemperatureScientific ExperimentationHypothesis And ExperimentationExploration: Entering The World Of Secondary Science

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