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        Smithsonian Science How | Volcano Geochemistry: Windows to Earth's Interior

        Meet Dr. Elizabeth Cottrell, a geologist at the National Museum of Natural History. Explore volcanoes as windows into the Earth's interior. Understand how you are connected to the interior of the Earth. Uncover the evidence about geologic events contained in volcanic glass. Think about how plate tectonics have gotten us to where we are today.

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