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