While the Earth's oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth's grandest geological features. Scott Gass reminds us of the influence humans have on the ocean and the influence it has on us. [5:28]

Concepts

oceans

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Additional Tags

mountains in ocean, ocean features, ocean geography, size of all oceans, size of ocean, ted ed lesson, ocean

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Classroom Considerations

• Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)