Pumice is the only rock that floats on water.
14
Diamonds can be shattered with a hammer.
-104
Most dust particles in your house are made from dead skin!
67
Nearly 50% of the world's scientists are assigned to military projects.
71
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
One barrel of petroleum holds 42 gallons.
20
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118