Question

How does cooling affect the state of a substance?​

Answer 1

If water is cooled enough it can change to ice. If ice is warmed enough, it can change to liquid water. Heating a substance makes the molecules move faster. Cooling a substance makes the molecules move slower.

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Answer 2

If water is cooled enough it can change to ice.

If ice is warmed enough, it can change to liquid water.

Heating a substance makes the molecules move faster.

Cooling a substance makes the molecules move slower.

Heating a substance causes molecules to speed up and spread slightly further apart, occupying a larger volume that results in a decrease in density.

Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density.

Hot water is less dense and will float on room-temperature water.

Cold water is more dense and will sink in room-temperature water.