Across
- 1. the gas your red blood cells carry when you smoke
- 3. a type of disease which cannot be passed from person to person
- 4. a harmless tumour
- 7. when body cells grow out of control
- 8. you should do lots of this to keep you healthy
- 9. a group of cells growing out of control
- 10. when your body doesn't produce enough insulin
Down
- 2. a type of tumour spreading around the body
- 5. the addictive substance in cigarettes
- 6. when a woman is with child
- 11. the sticky black substance in cigarettes