Respiratory System

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Across
  1. 2. What are the blood cells that transport oxygen
  2. 7. What are the only human organ that floats?
  3. 8. What is the part of your blood that helps clot wounds?
  4. 9. What is the fluid that makes up your blood?
  5. 10. what does your body need to survive?
Down
  1. 1. what is the tube the goes from your mouth to your lungs?
  2. 2. What bones protect your lungs and heart?
  3. 3. What is the same of the system that helps you breathe?
  4. 4. What is the muscle that helps you breathe?
  5. 5. What is one of the most important things you do to stay alive?
  6. 6. What are the grape like caves where oxygen goes into the blood?