The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
No matter how cold it gets, gasoline will not freeze.
107
Cold water weighs more than hot water.
93
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
According to studies, men change their minds two to three times more often than women.
72
One ragweed plant can release as many as one billion grains of pollen!
51
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11