Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The only letter not appearing on the Periodic Table is the letter "J".
180
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The average home creates more pollution than does the average car.
33
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
One third of the electricity produced on earth is used to power electric light bulbs!
75