Lillian 1st

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Across
  1. 5. - boundary plates spread
  2. 8. soft layer below lithosphere
  3. 10. solid outer
  4. 11. - boundary plates move
  5. 13. Breaks in the crust where earthquakes occur
  6. 14. - ocean-ridge underwater mountain system sea floor spreading
  7. 15. hot solid rock below mantle
  8. 16. movement of heat through space
  9. 17. movement and heat in liquids and gases
Down
  1. 1. crust and upper mantle
  2. 2. original supercontinent
  3. 3. divergent boundary on land
  4. 4. sideways and downward movement
  5. 6. liquid and solid center
  6. 7. ridge long deep depression in ocean floor
  7. 9. - Boundary plates slide together
  8. 12. movement of heat from one solid object to another