Pumice is the only rock that floats on water.
14
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
The only letter not appearing on the Periodic Table is the letter "J".
180
The bark of an older redwood tree is fireproof.
65
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1