Cold water weighs more than hot water.
93
If the chemical sodium is dropped into water it will immediately and violently explode.
67
German chemists made a replica of a trophy the size of one molecule.
68
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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9