Sound travels about 4 times faster in water than in air.
408
Spain's capital Madrid means "place of abundant water".
29
If you get water flowing fast enough, it can cut metal.
354
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
Pure water (H2O) does not conduct electricity on its own.
46
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Penguins have a gland above their eye that turns saltwater into freshwater.
12
A person can live without food for about a month, but only about a week without water.
156