Your brain is 80% water.
525
No matter how cold it gets, gasoline will not freeze.
107
One third of the electricity produced on earth is used to power electric light bulbs!
75
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A ball of glass will bounce higher than a ball made of rubber.
73
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61