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Handout
Columbia University

Columbia University: Evidence for Internal Earth Structure and Composition

For Students 9th - 10th
College-level research information describes how the movement of Earth's interior causes seismic wave activity.
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Graphic
Incorporated Research Institutions for Seismology

Iris: Seismic Tomography [Pdf]

For Students 9th - 10th
Learn how seismic tomography imaging helps scientists understand the formation of the Earth's interior.