Earth Science

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Across
  1. 4. The deeper the layer of rock, the older it is.
  2. 8. Third layer of the earth, liquid iron and nickel
  3. 11. Plates move together
  4. 13. crust made of mostly basalt, very thin but more dense
  5. 15. second layer of the earth
  6. 16. Landform made about and around subduction zones
  7. 17. Four layer of the earth, solid iron and nickel
  8. 18. Scientist who came up with the theory of continental drift
  9. 19. Event caused when tectonic plates suddenly slip
Down
  1. 1. First layer of the earth, Oceanic or Continental
  2. 2. Areas where tectonic plates collide
  3. 3. Heat transfer that causes movement of tectonic plates
  4. 5. Breaking down of rock overtime.
  5. 6. Large pieces of earths crust and mantle that "float" on the asthenosphere
  6. 7. crust made of mostly granite, thicker but less dense
  7. 9. Convergent boundary where one plate is sucked beneath another.
  8. 10. Divergent boundary where plates separate allowing new ocean floor to be made.
  9. 12. Plates slide past each other
  10. 14. Plates move apart