The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Iron weighs more after it rusts.
16
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
In zero gravity, a candle's flame is round and blue.
16
One ragweed plant can release as many as one billion grains of pollen!
51
The force of a suction cup is calculated using F=AP.
15