A cubic yard of air weighs about 2 pounds at sea level.
31
The average home creates more pollution than does the average car.
33
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
