The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
A cubic yard of air weighs about 2 pounds at sea level.
31
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Iron weighs more after it rusts.
68
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Indoor pollution is 10 times more toxic than outdoor pollution.
62