Pumice is the only rock that floats on water.
14
Cold water weighs more than hot water.
93
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
No matter how cold it gets, gasoline will not freeze.
107
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
The average temperature at 40,000 feet above sea level is -60 F.
56
Iron weighs more after it rusts.
16