In zero gravity, a candle's flame is round and blue.
16
Iron weighs more after it rusts.
68
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Out of all the senses, smell is most closely linked to memory.
146
Scientists in Germany have developed a candy that doesn't cause cavities.
11