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