The earth is approx. 6,588,000,000,000,000,000 tons.
175
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
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
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The force of a suction cup is calculated using F=AP.
15
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Sound at the right vibration can bore holes through a solid object.
134
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