Across
- 3. long chains of undersea mountains
- 5. drift continents move around on Earth’s surface
- 7. an ancient supercontinent
- 8. how the pieces of Earth’s surface move
Down
- 1. the process of lithospheric plate sinking into mantle
- 2. lithospheric plates move over this
- 4. a lithospheric plate that forms floor of the ocean
- 6. valley formed on the ocean floor due to collision plates