Question

the passage below describes an experiment. sophie had medicine tablets that fizzed, or released gas, as they dissolved in water. she crushed five tablets into pieces and left another five tablets whole. she dropped each tablet, crushed or whole, into its own glass with eight ounces of water. the water in each glass was at room temperature. sophie watched the glasses and recorded the amount of time it took each of the ten tablets to stop fizzing. identify the question that the experiment can best answer. do crushed tablets or whole tablets cause a bigger change in the temperature of the water in which they dissolve? does the number of tablets placed in a glass of water affect how long tablets fizz? do whole tablets fizz for a longer period of time than crushed tablets?

Explanation:

Sophie's experiment has two types of tablets - crushed and whole. She records the fizz - ing time for each. The variables are tablet form (crushed or whole) and fizzing time. Temperature change and number of tablets are not the focus.

Answer:

Do whole tablets fizz for a longer period of time than crushed tablets?