Across
- 3. The natural world around us.
- 5. Things you don’t need.
- 8. Use less water.
- 11. Things you throw away.
- 13. Species at risk of disappearing.
- 14. Community of living things interacting.
- 15. Energy from sun, wind, or water.
- 17. Increase in Earth's temperature.
- 18. Variety of plants and animals.
- 20. Dirty air, water, or land.
Down
- 1. Natural fertilizer made from food scraps.
- 2. Long-term changes in temperature and weather.
- 4. Material made from oil.
- 6. The planet we live on.
- 7. Cutting down many trees.
- 9. Use less.
- 10. Where you put trash.
- 12. Make something new from old materials.
- 16. Natural home of an animal or plant.
- 19. Use again.