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View Resource Nothing seems more solid than the ground under our feet, right? Yet you might be surprised to learn that we’re actually standing on a floating layer of rock that rides on the Earth’s denser mantle. The ground moves because the mantle beneath it moves, carrying us with it.

How does the ocean floor get its shape?
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3 ratingsGrades: 7th, 6th, 4th, 3rd, 2nd, 1st, K, 8th, 9th, 10th, 11th, 12th
Language: English Countries: United States
View Resource Nothing seems more solid than the ground under our feet, right? Yet you might be surprised to learn that we’re actually standing on a floating layer of rock that rides on the Earth’s denser mantle. The ground moves because the mantle beneath it moves, carrying us with it.