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Why does ice float in water? - George Zaidan and Charles Morton

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Water is a special substance for several reasons, and you may have noticed an important one right in your cold drink: ice. Solid ice floats in liquid water, which isn't true for most substances. But why? George Zaidan and Charles Morton explain the science behind how how hydrogen bonds keep the ice in your glass (and the polar ice caps) afloat.

Besides sushi, lobster rolls, and James Cameron’s Oscar, what else would be different if ice didn’t float on water? Come up with as many examples as you can, and explain each one.

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