Unlike every other planet in the solar system, Earth's surface is 70% liquid water, which while useful for life, is strange because everything we know about how and when our planet formed says Earth should be bone dry. Watch and learn about how water came to Earth. [2:58]

Additional Tags

carbonaceous chondrite, earth's surface, where did earth's water come from?, water on earth, physical processes of earth's surface

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Classroom Considerations

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

• This video is hosted on YouTube