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Across 2. hardened plaque 9. thick layer below the outer layer of the skin 10. someone who buys products or services 12. colored part of the eye 15. opening leading to the ear drum (2 Words) 16. measure of the loudness of sound 19. image focuses in front of the retina 23. layer of tissue below the dermis (2 Words) 24. visible outer layer of the tooth 25. something that takes your attention away 27. focuses light to form an image on the retina 28. clear covering of the eye 29. an infection of the outside of the eye and eyelid 30. outer part of the ear

Down 1. infected oil gland in the eyelid 3. converts sound to vibrations (2 Words) 4. opening in the iris 5. converts vibrations to nerve signals 6. skin disorder caused by by plugged pores in your skin 7. skin at the bottom of a finger nail 8. a lotion that has chemicals that protect you from UV rays 11. substances used in a product 13. sun protection factor 14. image is focused behind the retina 17. light sensitive cells on the back of the eye 18. tiny sacks from which hair grows (2 Words) 20. giving people information to encourage them to buy something 21. outermost layer of your skin 22. sticky substance that coats your teeth 26. inner layer of tooth