Across
- 3. use things again instead of throwing away
- 6. very dirty, full of trash/chemicals
- 7. Taking care of nature so it stays safe
- 9. all the people who live together
- 11. A list people sign to ask for change
- 12. Families in the future
- 13. not afraid to do the right thing
- 14. Land with no buildings
- 16. A safe home for animals and plants
Down
- 1. Keep safe for a long time
- 2. About the Earth and nature
- 4. The study of how plants, animals, and people live together on Earth
- 5. Super happy
- 8. the world around us: air, water, animals
- 10. keep safe
- 12. protectors, heroes of nature
- 15. trash left on the ground