Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Nylon is made from coal and petroleum.
42
Cold water weighs more than hot water.
93
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One cubic foot of gold weighs more than 1,200 pounds!
78
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Iron weighs more after it rusts.
16
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7