Pumice is the only rock that floats on water.
14
A person can live without food for about a month, but only about a week without water.
156
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.
11
If you get water flowing fast enough, it can cut metal.
354
Spain's capital Madrid means "place of abundant water".
29
Water is actually naturally blue.
48
Pure water (H2O) does not conduct electricity on its own.
46
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170