Across
- 2. bowl-shaped area around volcano vent
- 4. volcano with large, steep mountains
- 5. liquid magma
- 8. when water breaks down rocks
- 10. water drops sediment in new place
- 11. opening which allows magma to escape
- 13. triangular shaped deposit at mouth of river
Down
- 1. water picks up and moves sediment
- 3. molten mixture of rock, gases and water
- 4. large hole at top of volcano after magma chamber collapses
- 6. volcano with broad base and gentle slopes
- 7. giant cracks in Earth's surface
- 9. all living things on a planet
- 12. deep valley with steep sides, river at bottom