Water is actually naturally blue.
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Sound travels about 4 times faster in water than in air.
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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
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Spain's capital Madrid means "place of abundant water".
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Pure water (H2O) does not conduct electricity on its own.
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Penguins have a gland above their eye that turns saltwater into freshwater.
12
If you get water flowing fast enough, it can cut metal.
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