There are about 100,000 bacteria in one litre of drinking water.
63
Pumice is the only rock that floats on water.
14
Hot water can freeze faster than cold water.
181
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
The Kangaroo Rat can last longer without water than a camel.
233
Pure water (H2O) does not conduct electricity on its own.
46