A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Hot water can freeze faster than cold water.
181
Sound travels about 4 times faster in water than in air.
408
There are about 100,000 bacteria in one litre of drinking water.
63
Pumice is the only rock that floats on water.
14
The Kangaroo Rat can last longer without water than a camel.
233