OCEANS

For my blog im going to talk about oceans. Im going to tell you why oceans are so salty, the sources of Earth's oceans, and I will show you some features of the ocean floor.

 
First, I'm going to tell you why oceans are salty. Oceans are salty because when water flows through a river the water picks up tiny amounts of minerals then ends up in the oceans. Rain or water will pick up dissolved minerals, salts, and sediment that ends up in a river or somewhere then will eventually end up in the oceans too. 

Since the oceans cover about 3/4 of earths surface so with all the air above the water it has a lot of renewable energy like wind energy, oceans current energy, and much more energy.




Now I'm going to tell you about the oceans features. The ocean has many features like mountains, active volcanoes, trenches, and animal life.

 Most active volcanoes are in the mid-ocean ridge. The mid-ocean ridge is located at the Southern Pacific ocean, Atlantic Ocean, and Indian Ocean.
  (Map of Mid-Ocean Ridge)
A trench is a steep, long, part of the ocean and descends lower than other parts of the ocean. They are formed by the movement of the tectonic plates. The deepest trench we know of is the Mariana Trench in the Western Pacific and is 36,198 feet long.     

The marine animals are divided into 3 groups. The zooplankton group which float and stays at the top of the ocean. The nekton which rapidly swims around the ocean. The benthos which stay on the bottom of the ocean floor.


Links that I used:Click here to read about life in the oceans..

                           play games about oceans..