Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Iron weighs more after it rusts.
68
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The average temperature at 40,000 feet above sea level is -60 F.
56