The average ice berg weighs 20,000,000 tons!
54
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
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
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Louisiana is the only state that grows in land area every year (Due to alluvial deposits from the Mississippi River).
41
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119