Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound travels about 4 times faster in water than in air.
408
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Scientists in Germany have developed a candy that doesn't cause cavities.
11
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The average temperature at 40,000 feet above sea level is -60 F.
56
4.5 pounds of sunlight strike the Earth each day.
27