Across
- 1. this word means to breathe in
- 5. this is a sticky substance we have in our nostrils and also our lungs that filter out germs and particles
- 7. this is the big organ inside our chests where air is exchanged
- 8. this is the air we breathe out
- 10. this organ is also called the windpipe
- 11. this is the air we breathe in
Down
- 2. this means to breathe out
- 3. this is the system through which we breathe
- 4. the dome-shaped muscle under our lungs that contract and relax when we breathe
- 6. this organ allows you to breathe in and also to eat
- 9. this organ allows us to breathe in as well as smell