| A | B |
| An addictive drug found in tobacco | Nicotine |
| A thick dark liquid that forms when tobaccco burns | Tar |
| A colorless odorless poisonous gas produced when tobacco burns | Carbon Monoxide |
| Fragile elastic microscopic air sacs in the lung where carbon dioxide from body cells and fresh oxygen | Alveoli |
| A disease that destroys alveoli | Emphysema |
| Respiratory system | The organs that supply your body whith oxygen |
| The tube in the throat that takes air to and from the lungs | Trachea |
| Two tubes that branch from the trachea one tube leads to each lung | Bronchi |
| large dome shaped muscle the lungs that expands and relaxes to produce breathing | Diaphragm |
| A psychological or physical need for drugs or other substance | Addiction |