Iron weighs more after it rusts.
68
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Pumice is the only rock that floats on water.
14
For every gallon of sea water, you get more than a quarter pound of salt.
45
A cesium atom in an atomic clock beats over nine billion times a second.
43
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
According to studies, men change their minds two to three times more often than women.
72
The bark of an older redwood tree is fireproof.
65