Tobacco

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. Serious disease where cells grow out of control (6)
  2. 3. Gas in the air that we need to breathe (6)
  3. 6. A wad of something ___ as tobacco (4)
  4. 7. Any of various dark heavy viscid substances obtained as a residue (3)
  5. 10. Any of the smallest ___ ducts (plural) (11)
  6. 11. An odorless very poisonous gas that is a product of incomplete combustion of ___ (14)
  7. 12. An abnormal condition of the lungs marked by decreased respiratory function (9)
  8. 13. An alkaloid poison that occurs in tobacco (8)
  9. 14. The charred portion of a candlewick (5)

Down

  1. 2. Substance used in or made by chemistry (plural) (9)
  2. 4. A drug that temporarily quickens some vital process (9)
  3. 5. A mature ___ ___ that contains hemoglobin to carry oxygen to the bodily tissues (plural) (13)
  4. 7. One of the tubules forming the respiratory system of most insects and many arachnids (7)
  5. 8. A public promotion of some product or service (11)
  6. 9. Inflammation of the membranes lining the ___ tubes (10)