Twenty percent of Earth's oxygen is produced by the Amazon forest.

A bee sting is acidic and a wasp sting is alkali. To treat a sting by one of these you should use the opposite type of chemical.

The amount of carbon in the human body is enough to fill about 9,000 'lead' pencils.

The only letter not appearing on the Periodic Table is the letter J.

The noble gas Xenon lasers can cut through materials that are so tough even diamond tipped blades will not cut.

Natural gas has no odour. The smell is added artificially so that leaks can be detected.

An ounce of gold can be stretched into a wire 80 kms (50 miles) long.

It is estimated that a plastic container can resist decomposition for as long as 50,000 years.

If you slowly pour a handful of salt into a totally full glass of water it will not overflow. In fact, the water level will go down.

Each time lightning strikes, some Ozone gas is produced, thus strengthening the Ozone Layer in the Earth's atmosphere.