One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A cesium atom in an atomic clock beats over nine billion times a second.
43
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One ragweed plant can release as many as one billion grains of pollen!
51
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Nylon is made from coal and petroleum.
42
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65