| 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 |