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
4.5 pounds of sunlight strike the Earth each day.
27
Most dust particles in your house are made from dead skin!
67
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
According to studies, men change their minds two to three times more often than women.
72
A single speck of dust is half way in size between a subatomic particle and the Earth.
15