If the chemical sodium is dropped into water it will immediately and violently explode.
67
4.5 pounds of sunlight strike the Earth each day.
27
The average home creates more pollution than does the average car.
33
Sound travels fifteen times faster through steel than through air.
134
In zero gravity, a candle's flame is round and blue.
16
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89