Balsa wood is classified as a hard wood!
41
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Most dust particles in your house are made from dead skin!
67