Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A cubic yard of air weighs about 2 pounds at sea level.
31
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Liquid TIDE laundry detergent glows under a blacklight.
96
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38