Across
- 3. causes plates to move
- 4. fracture in Earths crust
- 6. rigid outer layer of Earth
- 10. plate boundary that creates mountains
Down
- 1. large slab of Earths lithosphere that slowly moves
- 2. plate boundary that makes valleys
- 5. semi-fluid layer of the mantle
- 7. plate boundary that causes volcanoes
- 8. plate boundary that causes earthquakes
- 9. molten rock beneath Earths surface