Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Iron weighs more after it rusts.
16
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Pumice is the only rock that floats on water.
14