The average temperature at 40,000 feet above sea level is -60 F.
56
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A cubic yard of air weighs about 2 pounds at sea level.
31
Most dust particles in your house are made from dead skin!
67
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
In zero gravity, a candle's flame is round and blue.
16
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15