The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Scientists aren't sure what color dinosaurs were.
312
Pumice is the only rock that floats on water.
14
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
One third of the electricity produced on earth is used to power electric light bulbs!
75
No matter how cold it gets, gasoline will not freeze.
107
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118