Unit 1 - practices and short passage vocabulary

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Across
  1. 3. electric signal in your brain
  2. 7. ten years
  3. 11. extremely overweight
  4. 13. not visible to the naked eye
  5. 16. to disguise and protect oneself
  6. 17. very punishing
  7. 19. to fix
  8. 20. a hundred years
  9. 21. the thickness of something
  10. 22. food for nourishment
Down
  1. 1. to sleep through winter
  2. 2. tissue in a body that can shrink or expand
  3. 4. finding new methods
  4. 5. not long ago
  5. 6. a group of listeners or viewers
  6. 8. water from the sky
  7. 9. someone who studies something deeply
  8. 10. like a disaster
  9. 12. extremely large in size
  10. 14. an animal that is hunted for food
  11. 15. the visual aspect of computers
  12. 18. signs of a specific status