One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Pumice is the only rock that floats on water.
14
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Nylon is made from coal and petroleum.
42
A cesium atom in an atomic clock beats over nine billion times a second.
43
One cubic foot of gold weighs more than 1,200 pounds!
78
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The smell of freshly cut grass is actually a plant distress call.
31