Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Pumice is the only rock that floats on water.
14
Cold water weighs more than hot water.
93
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
One cubic foot of gold weighs more than 1,200 pounds!
78
No matter how cold it gets, gasoline will not freeze.
107