The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The Sahara desert expands at about 1km per month.
90
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Check your map! Virginia extends farther west than West Virginia.
67
Australia's Great Barrier Reef is 1,250 miles long!
45