Hannah d1-3 review

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Across
  1. 3. point where an earthquake starts
  2. 5. steep sided cone that forms from explosive eruptions
  3. 6. layer beneath earth's crust
  4. 11. supercontinent split apart into pieces
  5. 13. central opening in a volcanic area
  6. 14. heat from below earth's surface
  7. 15. sliding of a denser ocean plate under another plate when they collide
  8. 16. very hot part on earth's mantle
  9. 17. directly above the focus
  10. 19. cuplike hollow that forms the top of a volcano
  11. 20. cone formed from explosive eruptions of hot rocks
  12. 21. solid rocky surface
  13. 22. vibration that spreads away from a focus
Down
  1. 1. hot molten rock
  2. 2. sea floor spreading apart the crust
  3. 4. wide gently sloped cone that forms from flows of lava
  4. 7. amount of energy released by an earthquake
  5. 8. horizontal layers
  6. 9. device that detects the shaking of earth's crust
  7. 10. huge cracks in earth's crust
  8. 12. shaking after the initial shaking
  9. 18. earth's surface surface is broken into plates