Every year, Alaska has about 5,000 earthquakes.
31
The state of Florida is bigger than England!
74
The Atlantic Ocean is saltier than the Pacific Ocean.
54
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The Sahara desert expands at about 1km per month.
90
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
Australia's Great Barrier Reef is 1,250 miles long!
45