Earth Day

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Across
  1. 2. how good or bad something is
  2. 5. something that may not exist for long
  3. 6. use again
  4. 10. take part in
  5. 11. the action that changes or effects something
  6. 13. created
  7. 15. believed
  8. 16. starting
  9. 18. something that protects or stops harm
  10. 19. able to be kept
  11. 20. to celebrate
  12. 23. materials that hurt the environment
Down
  1. 1. show
  2. 3. new plans to change something
  3. 4. encouraging, to help something
  4. 7. to give assistance to
  5. 8. cycle again
  6. 9. something that happens that is unusual
  7. 12. the change that is caused by something
  8. 14. cut use or make smaller
  9. 17. express an objection or disagreement
  10. 21. the natural world
  11. 22. once a year