Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A cesium atom in an atomic clock beats over nine billion times a second.
43
In zero gravity, a candle's flame is round and blue.
16
Aluminum used to be more valuable than gold!
84
The sun is 330,330 times larger than the earth.
75