Pumice is the only rock that floats on water.
14
Lack of water is the #1 trigger of daytime fatigue.
148
A person can live without food for about a month, but only about a week without water.
156
Water is actually naturally blue.
48
Spain's capital Madrid means "place of abundant water".
29
There are about 100,000 bacteria in one litre of drinking water.
63
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