4.5 pounds of sunlight strike the Earth each day.
27
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
German chemists made a replica of a trophy the size of one molecule.
68
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Iron weighs more after it rusts.
16
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6