Most dust particles in your house come from dead skin.
48
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Hot water can freeze faster than cold water.
181
The only letter not appearing on the Periodic Table is the letter "J".
180
Sound travels about 4 times faster in water than in air.
408
Pumice is the only rock that floats on water.
14
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57