Across
- 3. When soil or rocks fall down a hill
- 5. A very strong storm with powerful winds
- 7. A powerful storm with strong winds that spins in a circle
- 10. Things we throw away
- 12. A large area full of trees
- 13. To keep something safe from harm
- 15. Plants, animals, and the environment around us
Down
- 1. A mountain that erupts with lava
- 2. To use something again instead of throwing it away
- 4. Dirty air, water, or land that harms living things
- 6. A long stream of water that flows across land
- 8. When the ground shakes suddenly
- 9. When too much water covers the land
- 11. Strong wind, rain, and thunder
- 14. A very large sea wave caused by an earthquake