Sound travels about 4 times faster in water than in air.
408
If you get water flowing fast enough, it can cut metal.
354
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Pumice is the only rock that floats on water.
14
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
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
By peeing in the shower, you can save 1,157 gallons of water a year.
31