Bio Fun 10

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Across
  1. 3. Low speed
  2. 4. Low heat
  3. 7. Living space
  4. 8. Use less
  5. 12. Use again
  6. 16. Sorting waste
  7. 17. Big weight
  8. 18. Small weight
  9. 20. Space world
Down
  1. 1. Nature order
  2. 2. No dirt
  3. 5. Reuse things
  4. 6. With dirt
  5. 9. No water
  6. 10. With water
  7. 11. Large size
  8. 13. Tiny size
  9. 14. Low height
  10. 15. High height
  11. 19. High heat