Lack of water is the #1 trigger of daytime fatigue.
148
Spain's capital Madrid means "place of abundant water".
29
Pure water (H2O) does not conduct electricity on its own.
46
Pumice is the only rock that floats on water.
14
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
Penguins have a gland above their eye that turns saltwater into freshwater.
12