why ice floaty on water
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Answer:
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Answer:
Most materials become more dense the colder they get.
Water is a weird one. Water does get denser as it cools, up to a point. As water becomes cold enough to freeze, the water molecules start to lock into place as they solidify into ice. Due to the structure of the water molecules, this causes the water to expand slightly (about 9%) as it solidifies.
So, the molecules are slightly further apart when in solid form than when in liquid form.
Because the same mass of water is now occupying more space, it will float in liquid water.
It will float with about 9% of it’s volume poking above the surface, I believe.
Salt water vs fresh water would change this slightly, as salt water is denser than fresh water (... because of the salt).