Pumice is the only rock that floats on water.
14
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
A person can live without food for about a month, but only about a week without water.
156
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
If you get water flowing fast enough, it can cut metal.
354
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
There are about 100,000 bacteria in one litre of drinking water.
63