Science

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Across
  1. 3. Sacs of lung tissue
  2. 6. Forms scabs
  3. 7. Helps with breathing
  4. 11. Filters waste in urine
  5. 13. Exchange oxygen and carbon dioxide through blood
  6. 14. Connects the mouth and the stomach
  7. 15. Tissues working together
Down
  1. 1. Allows air into lungs
  2. 2. Liquid part of blood
  3. 4. Stores urine
  4. 5. Hearts lower chamber
  5. 8. Upper chamber of heart
  6. 9. Cells working to perform a job
  7. 10. The basic unit of all living things
  8. 12. Filter found in kidneys