Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A cubic yard of air weighs about 2 pounds at sea level.
31
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The average home creates more pollution than does the average car.
33
Scientists aren't sure what color dinosaurs were.
312
The smell of freshly cut grass is actually a plant distress call.
31