Pumice is the only rock that floats on water.
14
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The average temperature at 40,000 feet above sea level is -60 F.
56
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
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
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38