It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The state of Florida is bigger than England!
74
There are more than 50,000 earthquakes throughout the world every year!
47
