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In which question will the dissolving time of salt be measured?

Answer and explanation

Correct answer: How long does salt take to dissolve in hot and cold water

Option B specifically asks how long salt takes to dissolve, so it requires measuring time. Comparing the time in hot and cold water can show the effect of temperature on the rate of dissolving. Options A, C, and D ask only about observable properties and do not require a time measurement. Exam tip: Questions containing “how long” or “how much time” require time to be measured.

Related tags

Salt DissolutionMeasuring TimeTemperature EffectScientific InvestigationRate Of DissolvingMeasurement And Scientific UnitsExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary Science

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