The respiratory system
Across
- 3. A tube the Oxygen travels down
- 6. Building blocks of life
- 7. You breathe it in
- 9. Small airways in your lungs
Down
- 1. The process of taking in oxygen for your body
- 2. Something thatś not needed and harmful
- 4. A waste product that is exhaled
- 5. Tiny sacks at the end of the bronchioles
- 8. Something that makes the body function
- 10. You have 2; contains most respitory system parts