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
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
One barrel of petroleum holds 42 gallons.
20
For every gallon of sea water, you get more than a quarter pound of salt.
45