A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Each day, up to 150 species of life become extinct.
-23
Scientists aren't sure what color dinosaurs were.
312
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Scientists in Germany have developed a candy that doesn't cause cavities.
11
One cubic foot of gold weighs more than 1,200 pounds!
78
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13