Respiratory System

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Across
  1. 2. Moving air in and out of your body.
  2. 5. The part of the cell that makes energy.
  3. 8. Breathing the air out of the lungs to rid the body of carbon dioxide.
  4. 9. A respiratory illness.
  5. 14. The yellow, liquid part of the blood.
  6. 18. Joints that open and close like a door, like the knee and elbow.
  7. 19. The cell that carries oxygen in your blood.
  8. 22. The branches from the bronchi to the alveoli
  9. 23. A scientific explanation.
  10. 24. A push or a pull on something.
  11. 25. When high amounts of gas go to areas where there are lower amounts.
  12. 27. The special muscle that makes up your heart and allows it to beat.
  13. 29. The red part of blood that holds onto oxygen.
  14. 30. The muscles that are connected to your bones.
  15. 32. Guessing what will happen next in an experiment.
  16. 33. a controlled test to validate a hypothesis
  17. 34. Breathing air into the lungs for oxygen.
  18. 35. Tiny hairs that sweep particulates and pathogens out of your lungs.
Down
  1. 1. The big muscle under lungs that expand and contract the rib cage to enable breathing.
  2. 3. A tiny germ that makes you sick.
  3. 4. The waste gas our bodies breathe out.
  4. 5. Sticky liquid inside parts of the respiratory system that traps particulates and mucus
  5. 6. The two big air tubes that branch from the trachea and go into the lungs.
  6. 7. Soft, bendy tissue that protects the ends of bones and makes up the trachea.
  7. 10. built out of facts after experimentation confirms a hypothesis.
  8. 11. Using oxygen to get energy from our food.
  9. 12. Contains hair and mucus that filters the air that comes in.
  10. 13. A pattern you can clearly see on a graph.
  11. 15. Tiny air sacs in the lungs that exchange oxygen for carbon dioxide.
  12. 16. The muscles inside your stomach and other organs.
  13. 17. Joints that can move in a wide circle, like a shoulder and hip.
  14. 20. Small skin flap that covers windpipe when you swallow.
  15. 21. The gas from the air that we must breathe.
  16. 26. Special proteins your body makes to fight germs.
  17. 28. The parts of an experiment that can change.
  18. 31. Small blood vessels where gas exchange takes place.