Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Cold water weighs more than hot water.
93
One third of the electricity produced on earth is used to power electric light bulbs!
75
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
Each day, up to 150 species of life become extinct.
-23
A cubic yard of air weighs about 2 pounds at sea level.
31
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65