Scientists aren't sure what color dinosaurs were.
312
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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Indoor pollution is 10 times more toxic than outdoor pollution.
62
4.5 pounds of sunlight strike the Earth each day.
27
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310