The bark of an older redwood tree is fireproof.
65
Each day, up to 150 species of life become extinct.
-23
Diamonds can be shattered with a hammer.
-104
Balsa wood is classified as a hard wood!
41
A ball of glass will bounce higher than a ball made of rubber.
73
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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