A sea is a large body of salt water that is often connected to an ocean. It may be partly or completely surrounded by land.
 

In the drawing of the Bering Sea, notice that it is separated from the Pacific Ocean by a chain of islands.

The photo from space on the left is the Caspian Sea. It is a landlocked sea. It does not connect to an ocean. The Caspian Sea is the world's largest inland body of water (143,000 square miles). It is 3200 feet deep at its deepest point. It is located between Europe and Asia. The water is salty, but only about one-third as salty as an ocean.

 

This is another satellite view. It shows the Dead Sea and the Sea of Galilee. The Dead Sea is the lowest point on earth - 1371 feet below sea level. It is located between Jordan and Israel.

The Dead Sea is very salty - 9 times that of an ocean. A person can lay on top of the water without sinking.

The Sea of Galilee is fresh water and not really a sea in geographic terms. It is a lake. Throughout history it has been called the Sea of Galilee.

 

The Caribbean Sea is located north of South America. Notice how islands and continental land surrounds it. Hurricanes are formed here and usually travel northwesterly.

Related Terms
coast - seas have coastlines
island - seas often have islands
reef - a sea sometimes has reefs
bay - there are bays in seas
ocean - most seas connect to an ocean
cove - seas have coves
lagoon - lagoons are located next to many seas
 
 
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