Across
- 3. mid-ocean ridges add material to the ocean floor
- 6. earths plates & plate motions into a theory
- 7. diverge; moving away
- 9. supercontinent
- 10. when Earth’s crust diverge on land and a deep valley forms
Down
- 1. continents slowly moving over the surface overtime
- 2. come together
- 4. trace of an ancient organism preserved in rock
- 5. the ocean floor sinking under a deep ocean trench & back into the mantle
- 8. breaks in Earth’s crust where rocks slip past each other