Pumice is the only rock that floats on water.
14
For every gallon of sea water, you get more than a quarter pound of salt.
45
Diamonds can be shattered with a hammer.
-104
The storage capacity of human brain exceeds 4 Terrabytes.
140
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
A ball of glass will bounce higher than a ball made of rubber.
73
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11