Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The bark of an older redwood tree is fireproof.
65
According to studies, men change their minds two to three times more often than women.
72
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In zero gravity, a candle's flame is round and blue.
16
The sun is 330,330 times larger than the earth.
75
No matter how cold it gets, gasoline will not freeze.
107