colour-blind, danger, emergency, good luck, represent, safety, wedding, bright, dye, light, warn, common, flag, national, trust, visible, cheerful, down, nervous, relaxed, chemical, law, poison, powder, sight

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Across
  1. 2. worried that something bad might happen
  2. 4. a dangerous material that can harm or kill
  3. 6. can be seen
  4. 7. the ability to see
  5. 9. easy to find or see
  6. 10. calm and enjoying yourself
  7. 11. believe someone is good or honest
  8. 14. cannot see some colours correctly
  9. 15. a dry material made of very small pieces
  10. 18. being safe and free from danger
  11. 19. a piece of cloth representing a country
  12. 22. feeling sad
  13. 23. related to a country
  14. 24. a substance that changes the colour of something
Down
  1. 1. a situation that can cause harm
  2. 3. show or stand for something
  3. 5. a material used in science or products
  4. 8. tell someone that something bad might happen
  5. 9. feeling happy and showing it
  6. 12. luck when good things happen to you
  7. 13. not dark or deep in colour
  8. 16. something serious needing immediate action
  9. 17. an event where two people get married
  10. 20. a rule made by the government
  11. 21. a colour that stands out and is easy to see