The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The average home creates more pollution than does the average car.
33
The force of a suction cup is calculated using F=AP.
15
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
The only letter not appearing on the Periodic Table is the letter "J".
180
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57