Scientists aren't sure what color dinosaurs were.
312
A cubic yard of air weighs about 2 pounds at sea level.
31
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
The only letter not appearing on the Periodic Table is the letter "J".
180
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Research indicates that plants grow healthier when they are stroked.
173