Pumice is the only rock that floats on water.
14
One cubic foot of gold weighs more than 1,200 pounds!
78
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Most dust particles in your house come from dead skin.
48
One barrel of petroleum holds 42 gallons.
20
Pure water (H2O) does not conduct electricity on its own.
46
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79