Nylon is made from coal and petroleum.
42
Balsa wood is classified as a hard wood!
41
One cubic foot of gold weighs more than 1,200 pounds!
78
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Iron weighs more after it rusts.
16
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44