Question

a student is planning an experiment to determine how ice causes cracks in the rocks on a nearby hillside. the student decides to add different amounts of tap water to several plastic bottles. the student will mark the water level on each bottle and place the bottles inside a freezer overnight. select words from the lists to complete the sentences. to determine the property of water that is mostly responsible for the formation of cracks in rocks by ice, the student should measure the change in that occurs when water freezes. to better simulate the conditions under which the cracks form in the nearby rocks, the student should use instead of tap water.

Explanation:

Water expands when it freezes, which can cause cracks in rocks. Using water similar to that in the rocks' environment (like rain - water or groundwater) would be better for simulation.

Answer:

First blank: volume
Second blank: rain - water (or groundwater or other appropriate natural - source water)