Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
German chemists made a replica of a trophy the size of one molecule.
68
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
4.5 pounds of sunlight strike the Earth each day.
27
Diamonds can be shattered with a hammer.
-104
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65