Your brain is 80% water.
525
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Indoor pollution is 10 times more toxic than outdoor pollution.
62
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
A ball of glass will bounce higher than a ball made of rubber.
73
Cold water weighs more than hot water.
93
Aluminum used to be more valuable than gold!
84