Cold water weighs more than hot water.
93
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
If the chemical sodium is dropped into water it will immediately and violently explode.
67
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The average home creates more pollution than does the average car.
33
The average temperature at 40,000 feet above sea level is -60 F.
56
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists in Germany have developed a candy that doesn't cause cavities.
11