Grade 5 Science - The Respiratory System

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Across
  1. 2. carries oxygen to all parts of your body
  2. 5. means to breathe in
  3. 6. another name for a windpipe
  4. 8. a second thing your body needs to stay alive
  5. 9. a gas found in the air that you breathe
  6. 10. something your body needs to stay alive
Down
  1. 1. means to breathe out
  2. 3. a muscle used to move air in and out of lungs
  3. 4. a waste product produced by the body
  4. 7. two organs at the bottom of the trachea