It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Australia's Great Barrier Reef is 1,250 miles long!
45
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The state of Florida is bigger than England!
74