Penguins have a gland above their eye that turns saltwater into freshwater.
12
Hot water can freeze faster than cold water.
181
Pumice is the only rock that floats on water.
14
By peeing in the shower, you can save 1,157 gallons of water a year.
31
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Lack of water is the #1 trigger of daytime fatigue.
148
Spain's capital Madrid means "place of abundant water".
29