My Puzzle

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Across
  1. 1. liquid and solid center
  2. 4. solid outer
  3. 6. crust and upper mantle
  4. 7. long deep depressions in ocean floor
  5. 9. movement of heat from one solid object to another
  6. 11. movement of heat energy through space
  7. 13. soft layer below lithosphere
  8. 14. is the original supercontinent
  9. 15. a crack in the earth's crust
  10. 16. boundary plates slide past each other
Down
  1. 1. movement of heat in liquids and gasses = warm rises and cool sinks
  2. 2. boundary plates spread
  3. 3. underwater mountain system
  4. 5. sideways and downward movement
  5. 8. divergent boundary on land
  6. 10. boundary plates move together
  7. 12. hot solid rock below crust