If the chemical sodium is dropped into water it will immediately and violently explode.
67
One third of the electricity produced on earth is used to power electric light bulbs!
75
For every gallon of sea water, you get more than a quarter pound of salt.
45
Iron weighs more after it rusts.
16
Nearly 50% of the world's scientists are assigned to military projects.
71
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Sound travels about 4 times faster in water than in air.
408