science

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Across
  1. 6. we did this last term
  2. 7. branching tubes off of _______
  3. 9. breathe out
  4. 11. 1μm air sacs on the end of tubes
  5. 12. plural of goose
  6. 14. plural of moose
  7. 16. red liquid in small tunnels
  8. 18. we did this two terms ago
  9. 19. breath in a balloon
Down
  1. 1. we did this for 7 years
  2. 2. 1μm long & wide contraption
  3. 3. there's barely any dark red s**t in this
  4. 4. there's some orange s**t in this
  5. 5. when a mommy goose and a daddy moose love each other veeerry much...
  6. 7. two branching tubes making more tubes
  7. 8. we did this this term
  8. 10. eating inside a bag
  9. 13. a looooooooong tube
  10. 15. breathe in
  11. 17. there's some dark red s**t in this