4.5 pounds of sunlight strike the Earth each day.
27
In zero gravity, a candle's flame is round and blue.
16
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Pure water (H2O) does not conduct electricity on its own.
46
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Balsa wood is classified as a hard wood!
41
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7