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
Hot water can freeze faster than cold water.
181
Each day, up to 150 species of life become extinct.
-23
Aluminum used to be more valuable than gold!
84
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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