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In an experiment sound intensity is changed and plant growth is measured. What is the dependent variable?

Answer and explanation

Correct answer: Plant growth

A dependent variable is the outcome that is measured or observed in an experiment. Here, sound intensity is deliberately changed, so it is the independent variable, while plant growth is measured. Therefore, plant growth is the dependent variable. Factors such as the amount of water and pot size should be kept controlled for a fair test. Exam tip: the variable that is measured is usually the dependent variable.

Related tags

Dependent VariableIndependent VariableExperimental VariablesPlant GrowthSound IntensityVariables In An ExperimentExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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