By peeing in the shower, you can save 1,157 gallons of water a year.
31
There are about 100,000 bacteria in one litre of drinking water.
63
Hot water can freeze faster than cold water.
181
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
Sound travels about 4 times faster in water than in air.
408
Pumice is the only rock that floats on water.
14
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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