Earth Science Chapter 19 – the ocean basins section 1 – The Water Planet



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Earth Science

Chapter 19 – THE OCEAN BASINS

Section 1 – The Water Planet

E.Q.: What are the major divisions of the ocean, what are their features, and how do we study them?

STANDARDS:

SES6. Students will explain how life on Earth responds to and shapes Earth systems.

a. Relate the nature and distribution of life on Earth, including humans, to the chemistry and availability of water.

Objectives

  • Name the major divisions of the global ocean.

  • Describe how oceanographers study the ocean.

  • Explain how sonar works.

The Water Planet

global ocean - the body of salt water that covers nearly three-fourths of Earth’s surface

  • The global ocean contains more than 97% of all of the water on Earth.

  • Although the ocean is the most prominent feature of Earth’s surface, the ocean is only about 1/4,000 of Earth’s total mass and only 1/800 of Earth’s total volume.



Divisions of the Global Ocean

  • The global ocean is divided into five major oceans. These major oceans are the Atlantic, Pacific, Indian, Arctic, and Southern Oceans.

  • The Pacific Ocean is the largest ocean on Earth’s surface. The next largest ocean is the Atlantic Ocean.




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