Across
- 5. _____ supports the respiratory system
- 7. only _______ gas filtered into the body
- 8. _____ process where plant make food
- 9. _____ expand when breathing in and relax when breathing out
- 11. _____ tube that connects nose and lungs
- 12. _____ is a process where gas exchange between oxygen and carbon dioxide
- 14. _____ green pigment for plant to make food
Down
- 1. ___-___ and other unwanted gas exits out of the body
- 2. ____ tiny opening for gas exchange
- 3. chlorophyll is found on the _____ side of the leaf
- 4. ____-______ tiny microscopic found in lungs
- 6. _____ allows air to come in and out of the body
- 10. stomata is found on the ____ side of the leaf
- 13. nose ____ remove dust particles