One ragweed plant can release as many as one billion grains of pollen!
51
Balsa wood is classified as a hard wood!
41
Iron weighs more after it rusts.
68
One barrel of petroleum holds 42 gallons.
20
Pumice is the only rock that floats on water.
14
The force of a suction cup is calculated using F=AP.
15
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88