Plate tectonics crossword

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Across
  1. 5. Forms when 2 oceanic plates collide
  2. 7. Upper layer of earths mantle in which there is relatively low plastic flow and convection is thought to occur
  3. 8. A hotzone where hot magma rises to the top, cools and falls back down
  4. 9. Plates colliding
  5. 11. What mountains were formed with the North American and African continental plates
  6. 13. Forms when a plate slides down and away from another plate
  7. 16. Transform boundaries cause what
  8. 18. Plates under the continent
  9. 20. Molten rock in Earth
Down
  1. 1. Plates under the ocean
  2. 2. A massive, irregularity shaped slab of rock, generally composed of both continental and oceanic lithosphere
  3. 3. Rigid outer part of Earth consisting of the crust and upper mantle
  4. 4. Where a plate sinks under another plate
  5. 6. Plates separating
  6. 10. Massive wave caused by oceanic plates colliding underwater
  7. 12. The way plate tectonics move to create things like faults, trench’s, earthquakes and other things
  8. 14. Forms on the edge of a tectonic plate
  9. 15. Plates sliding past each other causing friction
  10. 17. Where are convection currents located
  11. 19. Molten rock outside of Earth