Scientists aren't sure what color dinosaurs were.
312
Diamonds can be shattered with a hammer.
-104
The earth is approx. 6,588,000,000,000,000,000 tons.
175
In zero gravity, a candle's flame is round and blue.
16
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound travels about 4 times faster in water than in air.
408
Research indicates that plants grow healthier when they are stroked.
173
