In zero gravity, a candle's flame is round and blue.
16
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Aluminum used to be more valuable than gold!
84
Each day, up to 150 species of life become extinct.
-23
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Scientists in Germany have developed a candy that doesn't cause cavities.
11