A ball of glass will bounce higher than a ball made of rubber.
73
Each day, up to 150 species of life become extinct.
-23
Balsa wood is classified as a hard wood!
41
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The only letter not appearing on the Periodic Table is the letter "J".
180
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Diamonds can be shattered with a hammer.
-104