A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists aren't sure what color dinosaurs were.
312
One cubic foot of gold weighs more than 1,200 pounds!
78
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
No matter how cold it gets, gasoline will not freeze.
107