Pumice is the only rock that floats on water.
14
Hot water can freeze faster than cold water.
181
A person can live without food for about a month, but only about a week without water.
156
The water of the Antarctica is so cold that nothing can rot there.
334
By peeing in the shower, you can save 1,157 gallons of water a year.
31
Water is actually naturally blue.
48
Water, electricity, and gas has been free in Turkmenistan since 1991.
11
Spain's capital Madrid means "place of abundant water".
29