Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Pumice is the only rock that floats on water.
14
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
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
In zero gravity, a candle's flame is round and blue.
16
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34