Question

the passage below describes an experiment. harry poured equal amounts of water into six cups. he added nothing else to the first two cups, one teaspoon of salt to the second two cups, and two teaspoons of salt to the final two cups. he then stirred each cup for 15 seconds. he placed a thermometer into each cup and put the cups in the freezer. every 15 minutes, he recorded the temperature of the water in each cup and checked whether the water had frozen or not. identify the question that the experiment can best answer. does the amount of salt dissolved in water affect how quickly the water freezes? does stirring water affect how quickly the water freezes?

Explanation:

The experiment varies the amount of salt added to equal - amounts of water, stirs them the same way, and then records the freezing - related data. This setup is designed to test the impact of salt amount on water freezing. Stirring is kept constant for all cups, so it's not testing the effect of stirring.

Answer:

Does the amount of salt dissolved in water affect how quickly the water freezes?