Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Research indicates that plants grow healthier when they are stroked.
173
Scientists in Germany have developed a candy that doesn't cause cavities.
11
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One cubic foot of gold weighs more than 1,200 pounds!
78
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One barrel of petroleum holds 42 gallons.
20