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
Your brain is 80% water.
525
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
One ragweed plant can release as many as one billion grains of pollen!
51