Digestive & Respiratory System

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Across
  1. 1. dioxide A gas that your body makes when it uses energy; you breathe it out.
  2. 6. system, The group of body parts that break down food so your body can use it for energy.
  3. 7. A small sac that stores urine until you go to the bathroom.
  4. 9. The long tube that carries food from your mouth down to your stomach.
  5. 10. A large organ that helps clean your blood and makes juices that help digest food.
Down
  1. 2. system The group of body parts that help you breathe in air and get oxygen into your body.
  2. 3. Two large organs in your chest that fill with air when you breathe in and push out air when you breathe out.
  3. 4. An organ that mixes and breaks down food with strong juices after you swallow it.
  4. 5. Two bean-shaped organs that clean your blood and make urine.
  5. 7. The two big tubes that carry air from your windpipe into each lung.
  6. 8. To breathe air in through your nose or mouth.
  7. 9. To breathe air out through your nose or mouth.