Plate tectonics

123456789101112131415161718
Across
  1. 1. Less dense plates slide under more dense plates
  2. 3. Hot liquid
  3. 6. 2 types of plates
  4. 9. hot magma in the earth moves towards the surface, cools then sinks again
  5. 10. Less dense plate slides under more dense plate
  6. 11. Violent shaking of the ground
  7. 13. The plastic layer below the lithosphere
  8. 14. Plates below the ocean
  9. 16. the earths crust and upper mantle
  10. 17. the sea floor spreading
  11. 18. broken pieces of earth
Down
  1. 2. boundaries between two plates that are sliding past each other
  2. 4. Plates under the continent
  3. 5. boundaries between two plates that are moving apart or rifting
  4. 7. boundaries between two plates that are colliding
  5. 8. The crust and part of the upper mantle
  6. 12. A huge wave caused by an disturbance in the ocean
  7. 15. Opening in the crust of planets that erupt molten rock,gas, and ash