The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
A ball of glass will bounce higher than a ball made of rubber.
73
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
German chemists made a replica of a trophy the size of one molecule.
68
Scientists aren't sure what color dinosaurs were.
312
One barrel of petroleum holds 42 gallons.
20
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44