There aren’t seven continents ... (3.7 or 4.3 miles) of oceanic crust; it certainly contains a variety of rock formations; and despite being underwater, it is elevated above the ocean floor.

Here you will find videos and activities about the seven continents. Try them out, and test your knowledge with a short quiz before exploring the rest of the collection. Oh hello! I’m just ...

THE wide appeal of Prof. Wegener's theory of the arrangement of ocean and continent is shown by, the issue of a third greatly revised edition and of this excellent English translation. His theory ...