Cold water weighs more than hot water.
93
Iron weighs more after it rusts.
16
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Most dust particles in your house are made from dead skin!
67
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101