Across
- 3. pieces of crust diverge on land
- 5. ocean floor sinks beneath a trench into mantle
- 8. Earth plates are in slow constant motion
- 9. breaks in Earths crust where rocks slip by
- 10. long moutain ranges underwater
- 11. underwater canyons where crust bends
- 12. trace of an ancient organism
- 14. boundary where plates slip past each other
Down
- 1. pieces of crust that is formed by cracks
- 2. process that adds new ocean material
- 4. continents slowly move over time
- 6. boundary where plates move apart
- 7. supercontinent of one solid landmass
- 13. boundary where plates come together