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In an experiment sugar dissolving time is measured at different temperatures. What is the dependent variable?

Answer and explanation

Correct answer: Time taken for sugar to dissolve

In an experiment, the independent variable is the factor deliberately changed by the investigator. The dependent variable is the result observed or measured in response to that change. Other relevant factors should normally be kept constant so that the comparison is fair and the measured effect can be linked to the changed factor.

In this experiment, water temperature is varied, while the time required for sugar to dissolve is measured. Therefore, dissolving time is the dependent variable, because it is the observed outcome. Temperature is the independent variable. The amount of sugar and the container size would generally be controlled variables if the experiment is designed carefully. Hence option A is correct.

Related tags

Dependent-VariableDissolving-TimeTemperatureVariables In An ExperimentExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScienceClass 9 Mcq

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