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If the hypothesis states that adding more salt will increase the boiling point of water what will be the independent variable?

Answer and explanation

Correct answer: Amount of salt

The independent variable is the factor that a researcher deliberately changes to test its effect. The dependent variable is the result that is measured, while other important conditions should be kept controlled. Identifying the action in the hypothesis often makes the independent variable easy to find: the stated cause is changed and the stated effect is observed.

In this investigation, different amounts of salt are added to water. The amount of salt is therefore deliberately changed, so it is the independent variable. The boiling point is measured as the possible response, making it the dependent variable. Container size should be controlled, and a thermometer reading is a measurement rather than the changed factor. Hence option A is correct.

Related tags

Salt AmountIndependent VariableBoiling PointHypothesisHypothesis And ExperimentationExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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