|MadSci Network: Physics|
The density of water (at atmospheric pressure) goes from 1.000 g cm-3 at 4o C down to 0.958 g cm-3 at 100o C, according to "Smithsonian Physical Tables. Ice, however, has a density of 0.917 g cm-3, so it will float even in water that is on the verge of boiling.
By the way, I have actually tried this, so I know by experience that it is true!!
John Link, MadSci Physicist
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