Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
One cubic foot of gold weighs more than 1,200 pounds!
78
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
No matter how cold it gets, gasoline will not freeze.
107
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Pumice is the only rock that floats on water.
14
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The average temperature at 40,000 feet above sea level is -60 F.
56