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The Ocean

By: Mrs. Russell

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Saline water covers 71% of the Earth’s surface

Is customarily divided into several principal oceans and smaller seas, with the ocean covering approximately 71% of Earth's surface[6] and 90% of the Earth's biosphere

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Less than 5% of the ocean has been explored

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While there are hundreds of thousands of known marine life forms, there are many that are yet to be discovered, some scientists suggest that there could actually be millions of marine life forms out there.

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Ocean Tides

  • Ocean tides are caused by the Earth rotating while the Moon and Sun’s gravitational pull acts on ocean water.

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Oceans are frequently used as a means of transport with various companies shipping their products across oceans from one port to another.

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5 Oceans

  • Atlantic
  • Pacific
  • Indian
  • Southern
  • Arctic

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PacificT

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The Pacific Ocean contains around 25000 different islands, many more than are found in Earth’s other oceans.

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  • The Pacific Ocean is surrounded by the Pacific Ring of Fire, a large number of active volcanoes.
  • The largest ocean on Earth is the Pacific Ocean, it covers around 30% of the Earth’s surface.

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  • The Pacific Ocean’s name has an original meaning of ‘peaceful sea’.

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  • Located to the east of the Mariana Islands in the western Pacific Ocean, the Mariana Trench is the deepest known area of Earth’s oceans. It has a deepest point of around 11000 metres (36000 feet).

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Atlantic

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  • The second largest ocean on Earth is the Atlantic Ocean, it covers over 21% of the Earth’s surface.

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  • Amelia Earhart became the first female to fly solo across the Atlantic Ocean in 1932.

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Indian

The Indian Ocean is the world’s third largest ocean and covers 20% of the Earth’s surface

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40% of the world's offshore oil production comes from the Indian Ocean, mainly from oilfields of Indonesia and the Persian Gulf.

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Southern

  • fourth biggest (or second smallest) ocean on earth and covers only 6% of the earth’s surface.
  • While some disagree on whether it is an ocean or just part of larger oceans, the Southern Ocean includes the area of water that encircles Antarctica.
  • Icebergs are encountered in the Southern Ocean during any season

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Arctic Ocean

  • Smallest Ocean
  • During winter the Arctic Ocean is almost completely

covered in sea ice.

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Click below to read article on Global Warming

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