Plate tectonics

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Across
  1. 4. an opening in Earth’s crust from which lava, gas, and ash erupt
  2. 7. a layer of the upper mantle in which rocks can deform like plastic
  3. 9. boundary a boundary between plates that are moving toward each other
  4. 11. tectonics the movement of plates that make up Earth’s surface
  5. 12. the layer of Earth between the crust and the core
  6. 13. the rocky outer layer of Earth
Down
  1. 1. zone an area in a convergent boundary where two continents are colliding
  2. 2. zone a convergent boundary where one plate is sliding beneath another
  3. 3. boundary a boundary between plates that are moving away from each other
  4. 5. the rigid upper layer of the Earth
  5. 6. shaking and vibration of Earth’s surface
  6. 8. a boundary between plates that are sliding past one another
  7. 10. a rigid section of Earth’s crust that moves very slowly