Air becomes liquid at about minus 190 degrees Celsius.

Mercury is the only metal that is liquid at room temperature. Sciensational.com

Absolutely pure gold is so soft that it can be moulded with the hands.

Water expands by about 10% as it freezes. Sciensational.com

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. Sciensational.com

Hydrogen gas is the least dense substance.

Liquid air looks like water with a bluish tint. Sciensational.com

Hydrogen is the most abundant element in the Universe (75%).

Oxygen is the most abundant element in the Earth's crust, waters, and atmosphere (about 49.5%)

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

Hydrofluoric acid will dissolve glass. Sciensational.com

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.