Earth's Layers and Plate Tectonics

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Across
  1. 4. Middle layer of the Earth's interior making up 70% of Earth's mass
  2. 6. thin layer of rock at the Earth's surface
  3. 10. A soft upper layer of the mantle on which the lithosphere moves on
  4. 13. A plate boundary where to plates crash into each other
  5. 16. The molten liquid metal layer of the Earth's interior
  6. 17. A theory stating that present day continents drifted
  7. 18. The radio devise that sends signals from a satellite to the ground station on plate movement below Earth's surface
  8. 21. A plate boundary when two plate slide past each other
  9. 22. When two tectonic plates slowly crash into each other and mountains are formed.
  10. 23. A scientist who studies Earth's structure
Down
  1. 1. A German geologist who proposed the Continental Drift theory
  2. 2. The driving force of all plate movement located in the mantle
  3. 3. A theory explaining the structure of the Earth's crust
  4. 5. The solid metal layer of Earth's interio
  5. 7. A lithospheric block of earths crust
  6. 8. Giant landmass that included all of earths present day continents
  7. 9. The remains of plants and animals that lived millions of yeas ago
  8. 11. A plate boundary where to plates slide away from each other
  9. 12. The process by which new oceanic crust forms as magma rises to the surface forming new oceanic crust
  10. 14. An instrument that records vibrations caused by movements within the crust
  11. 15. A listhospheric block of the crust and upper mantle that shape Earth's surface
  12. 17. Inner most layer of the Earth compose mostly of Nickle and Iron
  13. 19. When one plate goes under another plate sinking back into the mantle
  14. 20. The study of Earth's surface structure