Design - spelling words

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Across
  1. 2. to damage something
  2. 5. to make something stronger
  3. 7. able to last a long time
  4. 9. strong and hard to break
  5. 10. a smaller or simple version of something
  6. 11. to change slightly
  7. 14. a person who designs or builds things
  8. 15. to design something again
  9. 17. to fix something
  10. 19. the act of making something better
  11. 20. to find an answer
Down
  1. 1. a first model of something
  2. 3. to make something
  3. 4. run a trial to see if something works
  4. 6. to check or judge something
  5. 8. to think about something again in a new way
  6. 12. to create something new
  7. 13. plan something before making it
  8. 16. to make something better
  9. 18. a thought or plan