Tectonic Plate Crossword

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Across
  1. 3. Where two plates are moving apart
  2. 4. They are created by subduction
  3. 5. A fine grained volcanic rock formed by the partial of the mantle
  4. 7. A dark intrusive igneous rock
  5. 9. The pieces of earths crust
  6. 11. Where two plates are colliding.
  7. 13. A fracture or zone of fractures in the earth along which there has been a displacement of the sides relative to one another
  8. 14. The solid outer portion of the earth
  9. 15. Molten material erupted at the surface of the earth
  10. 16. Atom with same atomic number, different number of neutrons
  11. 17. The act of imitating the behaviour of some situation
  12. 18. The outer layer of the earth
  13. 19. The layer of the earth between the crust and the core
  14. 20. Large section of earths crust and upper mantle that moves around on the asthenosphere
Down
  1. 1. Molten rock in the earths crust
  2. 2. A specialist in the history of the earth in rocks
  3. 6. Rigid layer made out of and upper mantle
  4. 8. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
  5. 10. The lower layer of the crust
  6. 12. Where plates slide passed each other