A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Spain's capital Madrid means "place of abundant water".
29
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
Tap water in Canada is held to a higher health standard than bottled water.
19
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Hot water can freeze faster than cold water.
181
A person can live without food for about a month, but only about a week without water.
156