Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The average home creates more pollution than does the average car.
33
The only letter not appearing on the Periodic Table is the letter "J".
180
Pure water (H2O) does not conduct electricity on its own.
46
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
Hot water can freeze faster than cold water.
181