All  material on this site is copyright © 2014 Marley Perkins Education Ltd, except photographic images which are in the public domain unless otherwise stated.

The Seven Seas

Bina Parveen

Seas or Lakes?

The Dead Sea and the Caspian Sea are both surrounded by land, with no seawater flowing in or out. Their water is salty so they seem like seas, but really they are lakes.

 

The Dead Sea is so salty that objects float more easily. The Caspian Sea's salt level is quite a bit lower than ocean waters.

 

 

The Black Sea is connected to the ocean by the Turkish Straits. During prehistoric times, this connection sometimes dried up, making the Black Sea a lake.

In-tray  |  7 Seas  |  History  |  100 Seas  |  Seas or Lakes?  |  Ship Canals  |  Sail the 7 Seas