Pumice is the only rock that floats on water.
14
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Approximately 60% of the water used by households during the summer is used for watering flowers and lawns.
79
By peeing in the shower, you can save 1,157 gallons of water a year.
31
Hot water can freeze faster than cold water.
181
Pure water (H2O) does not conduct electricity on its own.
46
Sound travels about 4 times faster in water than in air.
408
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219