Australia's Great Barrier Reef is 1,250 miles long!
45
One cubic mile of seawater contains about 50 pounds of gold.
79
There are more than 50,000 earthquakes throughout the world every year!
47
There are approximately three chickens for every human on Earth.
13
Check your map! Virginia extends farther west than West Virginia.
67
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17