The Atlantic Ocean is saltier than the Pacific Ocean.
54
The Sahara desert expands at about 1km per month.
90
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
Australia's Great Barrier Reef is 1,250 miles long!
45
The average ice berg weighs 20,000,000 tons!
54
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
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