Nylon is made from coal and petroleum.
42
Balsa wood is classified as a hard wood!
41
Pumice is the only rock that floats on water.
14
Diamonds can be shattered with a hammer.
-104
Cold water weighs more than hot water.
93
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Iron weighs more after it rusts.
68
Hot water can freeze faster than cold water.
181