I Like to Exercise!

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Across
  1. 2. these pull on your bones to let you move
  2. 5. sports, swimming and running. What are these?
  3. 7. a gas that people breathe in from the air to live
  4. 8. a muscle that beats faster to carry oxygen to your muscles
  5. 9. there are 206 of these in the human body
Down
  1. 1. a frog likes to do this for exercise
  2. 3. the strength to be active without getting tired
  3. 4. the longest bone in your body
  4. 6. exercise helps you this stay healthy