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Origins of Oceans

There are 4 videos in this category and 0 videos in 0 subcategories.

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Not Right For WatchKnowLearn
Ages: 10 - 18
122 Views:
Where Did Earth's Water Come From?
From YouTube, produced by Alex Reich, Peter Reich, Emily Elert
Earth's surface is 71% covered by water today, but it didn't start out that way. So where do we think Earth got its water? (02:59)
June 22, 2014 at 06:21 AM
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Not Right For WatchKnowLearn
Ages: 9 - 18
1688 Views:
Where Did Our Oceans Come From?
From YouTube, produced by National Geographic
Explore how half of Earth's water originated from the planet's inception and how the other half was deposited by comets. (03:46) This is a clip from a larger segment.
July 31, 2010 at 12:15 AM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1488 Views:
Origins of Oceans
From YouTube, produced by National Geographic
Three Quarters of our Earth is covered with water. Explore how half of Earth's water originated from the planet's inception and how the other half was deposited by comets. Find out why our planet is called the "Blue Planet" and why earth is different... [more]
July 10, 2009 at 07:03 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
1249 Views:
National Geographic - History Of Earth's Oceans
From YouTube
An ocean is a major body of saline water, and a principal component of the hydrosphere. Learn more in this brief overview of the history of water on this planet.
April 29, 2010 at 09:31 PM
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