If the chemical sodium is dropped into water it will immediately and violently explode.
67
Nylon is made from coal and petroleum.
42
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Hot water can freeze faster than cold water.
181
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
A cubic yard of air weighs about 2 pounds at sea level.
31