human body system grayson

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Across
  1. 3. breaks down food with chemical and mechanical digestion
  2. 6. it is the part to form scabs
  3. 7. the lower part of the heart
  4. 9. connects the mouth and stomach
  5. 12. it switches things
  6. 14. it goes away from heart
  7. 15. it can be found in the blood
Down
  1. 1. where digestion begins
  2. 2. it absorbs water
  3. 4. blood cells carries oxygen in the blood to the heart and lungs and body
  4. 5. blood cell it fights diseases
  5. 8. allows air to pass
  6. 10. the top part of the heart
  7. 11. a bunch of tissue
  8. 13. it exchanges oxygen and carbon dioxide