Explanation:
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Science Projects: How Hot & Cold Water Changes a Balloon
Investigate what happens to a balloon when hot and cold water are mixed. ... Fill one with cold water and the other one with hot water.
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What happens to a balloon in cold water?
When an inflated balloon is placed in cold water, it shrinks. This happens because the air inside the balloon occupies a smaller volume when the temperature is decreased, thus causing the walls of the balloon to collapse. ... The decrease in temperature causes the air molecules to move more slowly, with less energy.
