P4A-Hayden.J.A

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Across
  1. 2. It protects the spinal cord
  2. 3. It is made up of bones
  3. 5. The smallest unit of life
  4. 7. It is made up of a group of tissue and several of these structures work together will form a body system
  5. 9. A place in our skeletal system where bones meet
Down
  1. 1. It is made up of 12 pairs of curved bones that protects the heart
  2. 3. It has 22 bones and protects the brain
  3. 4. An action that makes our muscles to become longer and thinner
  4. 6. An action that makes our muscles to become shorter and fatter
  5. 8. A group of cells of the same kind