Across
- 3. If you have it on your skin, a virus may get in.
- 5. The respiratory system brings ... into your body
- 6. Body organs work together to form ...
- 8. It is a slimy fluid in your nose.
- 11. A sneeze or cough can ... another person.
- 12. You can feel it if you put two fingers on your wrist.
Down
- 1. This system is responsible for breaking down food.
- 2. The brain is part of the ... system.
- 4. If you put two of these together you get the size of your heart.
- 7. You can see small cells using it.
- 9. Your heart pumps blood into tubes called ...
- 10. It removes waste from your body.