Earth Science

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