Across
- 3. when a volcano explodes
- 4. too much water in a place
- 5. long time without rain
- 6. the side of a mountain
- 7. to break completely
- 10. moving air
- 12. when something is broken
- 14. moving water in the sea
- 15. a very big ocean wave
- 17. when the ground shakes
- 18. not safe
- 20. hot rock outside the Earth
Down
- 1. a dangerous event in nature
- 2. a big fire in nature
- 8. to move and grow
- 9. a strong hit
- 11. a rock from space
- 13. snow falling down a mountain
- 16. a very strong storm
- 19. not enough of something