Nylon is made from coal and petroleum.
42
If the chemical sodium is dropped into water it will immediately and violently explode.
67
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
No matter how cold it gets, gasoline will not freeze.
107
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A single speck of dust is half way in size between a subatomic particle and the Earth.
15