Across
- 2. juice in the mouth that helps to soften the food
- 6. organ in which food is partly digested
- 7. substance we get from the small intestine
- 9. organ that pumps blood to all parts of body
- 10. where water is absorbed in the undigested food
- 11. food is broken down into simpler substances
- 12. red liquid that flows in our body
- 13. process of exchanging gases in order to get energy
- 15. gaseous exchange happens here
Down
- 1. tube through which air passes from nose to the lungs
- 3. tubes that help transport substances in our body
- 4. air that passes out from the air sacs
- 5. take in air and give out again
- 8. carry something from one place to another
- 14. air that enters our bloodstream from the air sacs