Skeletal System Crossword

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Across
  1. 3. part of bone that can move
  2. 5. the biggest bone in your body
  3. 6. the core of the bone
  4. 7. bones that protect lungs and heart
  5. 10. a group of bones that holds up the body
  6. 12. smooth substance that coves tips of bones that meet
Down
  1. 1. the structure of the bone
  2. 2. smallest bone in body
  3. 4. known as hip bone
  4. 8. known as funny bone
  5. 9. bones that protect your head
  6. 11. the outside of the bone that protects it