A cubic yard of air weighs about 2 pounds at sea level.
31
The force of a suction cup is calculated using F=AP.
15
Your brain is 80% water.
525
One ragweed plant can release as many as one billion grains of pollen!
51
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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A ball of glass will bounce higher than a ball made of rubber.
73
Most dust particles in your house are made from dead skin!
67