The bark of an older redwood tree is fireproof.
65
Iron weighs more after it rusts.
16
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The average home creates more pollution than does the average car.
33
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304