Across
- 3. Organ of the respiratory system
- 6. This system gets rid of waste products and excess water
- 7. Which system is needed for our senses?
- 8. Another name for windpipe
- 10. Next level of organisation after cells
- 11. Name of the gas we breathe in
- 13. We have a large and a small one of these to digest food
- 15. The digestive system is need to do this to food
- 16. ______dioxide is the gas we breathe out
Down
- 1. The heart pumps this through the body
- 2. Nutrients are extracted from food in this system
- 4. Blood travels in these
- 5. The main organ of the circulatory system
- 9. Needed to give our bodies shape and form
- 12. Tube that allows urine to leave the body
- 14. The kidneys are part of this system