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 most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Sound at the right vibration can bore holes through a solid object.
134
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Scientists aren't sure what color dinosaurs were.
312
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
A cubic yard of air weighs about 2 pounds at sea level.
31