No matter how cold it gets, gasoline will not freeze.
107
Iron weighs more after it rusts.
16
Pumice is the only rock that floats on water.
14
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
German chemists made a replica of a trophy the size of one molecule.
68