Sound travels about 4 times faster in water than in air.
408
Water is actually naturally blue.
48
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
Spain's capital Madrid means "place of abundant water".
29
Hot water can freeze faster than cold water.
181
If you get water flowing fast enough, it can cut metal.
354
Pure water (H2O) does not conduct electricity on its own.
46