The Caspian Sea is also classed as the world's largest lake.
52
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The water of the Antarctica is so cold that nothing can rot there.
334
The state with the longest coastline in the Continental U.S. is Michigan.
31
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Check your map! Virginia extends farther west than West Virginia.
67