Scientists aren't sure what color dinosaurs were.
312
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Pure water (H2O) does not conduct electricity on its own.
46
The average temperature at 40,000 feet above sea level is -60 F.
56
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Most dust particles in your house come from dead skin.
48