Across
- 1. the tiny balloons inside the lungs that oxygen passes through
- 3. The organ responsible for transporting air to your whole body!
- 5. The smaller tubes that link the trachea to the lungs
- 7. The tube that connects the nose and mouth to the lungs
- 8. to breath out
Down
- 2. the gas we breathe in
- 4. the muscle that helps the lungs to expand and contract
- 6. to breathe in
- 8. We need to do this every day to stay healthy