Earth Structure and Dynamics

3. Geologist use them to investigate the Earth's interior
5. One of these created the Hawaiian Islands
9. The study of prehistoric Earth's magnetic fields recorded in rocks, sediment, or archeological materials
10. The Earth's core is supposed to be made of iron and ....
11. The mechanically weak region of the upper mantle of Earth
12. The movement of molten rock in the mantle that drives plate tectonics
13. the outer layer of the Earth
14. The boundary between the crust and the mantle of Earth
15. The most abundant element in Earth's crust
16. The life cycle of an ocean has been named after him
17. Mountains that were uplifted after the collision of the Indian tectonic plate with the Eurasian plate
18. The point on the Earth's surface directly above a focus
20. The deepest parts of the oceans

1. A large mountain range that runs along the center of many ceans
2. Their distribution across the continents was an evidence of the continental drift theory
4. Geological process between converging tectonic plates
6. The process by which new seafloor is created at mid-ocean ridges
7. The supercontinent tnat began to break apart about 200 million years ago
8. A fault where two tectonic plates slide past each other
19. German scientist who originated the theory of continental drift