Hydrogen is an explosive gas. Oxygen supports combustion. Yet when these are combined it is water which is used to put out fires. See more

Hot water weighs less than cold water for a given volume. See more

In 10 minutes, a hurricane releases more energy than all of the world's nuclear weapons combined. See more

25% of all fires of unknown origin are rat-caused. See more

The USA has more personal computers than the next 7 countries combined. See more

Blood is about 78 percent water. See more

If you fart constantly for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb. See more

All the chemicals in the human body have a combined value of approximately £4.00. See more

If you are locked in a completely sealed room, you will die of carbon dioxide poisoning before you will die of oxygen deprivation. See more

A rat can last longer without water than a camel. See more

About 70 percent of your body weight is water. See more

A jellyfish is 95 percent water. See more

A rat can last longer without water than a camel can. See more

We lose half a litre of water a day through breathing. See more

Ostriches stick their heads into the sand to find underground drinking water. See more

Some large clouds store enough water for 500,000 showers. See more