The only letter not appearing on the Periodic Table is the letter "J".
180
If the chemical sodium is dropped into water it will immediately and violently explode.
67
A cesium atom in an atomic clock beats over nine billion times a second.
43
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Each day, up to 150 species of life become extinct.
-23