The Sahara desert expands at about 1km per month.
90
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The state of Florida is bigger than England!
74
There are more than 50,000 earthquakes throughout the world every year!
47
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The city of Houston, Texas is built on a swamp and is slowly sinking!
89