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Zachery Fitzgerald
Physics
1 February, 03:21
What does density have to do with heat?
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Nathaniel Gibbs
1 February, 03:24
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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.
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Cheyenne Perkins
1 February, 03:30
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If you take a fluid (i. e. air or water) and heat it, the portion that is heated usually expands. The same mass takes up more volume and as a consequence the heated portion becomes less dense than the portion that is not heated.
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