Most dust particles in your house come from dead skin.
48
One ragweed plant can release as many as one billion grains of pollen!
51
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The only letter not appearing on the Periodic Table is the letter "J".
180
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Your brain is 80% water.
525
Iron weighs more after it rusts.
68
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17