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