If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Jellyfish as a species are actually older than dinosaurs and sharks.
383
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
Water is actually naturally blue.
48
The Titanic is about as long as the Empire State building is tall.
174
It's impossible to sink in the Dead Sea without equipment!
72
Two dogs were among the Titanic survivors.
262