Pumice is the only rock that floats on water.
14
Nylon is made from coal and petroleum.
42
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
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
4.5 pounds of sunlight strike the Earth each day.
27
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21