It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
In 1850, only 8% of the people in California were women.
0
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The state with the longest coastline in the Continental U.S. is Michigan.
31
Check your map! Virginia extends farther west than West Virginia.
67
It's still possible to see the division between East and West Germany due to different light bulbs.
5