The skeleton

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Across
  1. 3. They are used to let air inside a building.
  2. 5. They help birds fly.
  3. 6. This helps us move our arm.
  4. 7. This is to tell time, we put it on our wrist.
  5. 9. This helps us lift things
  6. 10. This helps us support our body
Down
  1. 1. They help bend the legs.
  2. 2. This helps us to dance.
  3. 4. You put money in this.
  4. 5. They live in the dirt
  5. 6. This helps to protect your brain.
  6. 7. This is fake hair.
  7. 8. This helps us grab things.