From Cells to Systems

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Across
  1. 2. Your skeletal system is made of ______.
  2. 4. Organ that pumps blood
  3. 5. When you breathe, you take in ______
  4. 6. This cell helps you stop bleeding if you get cut
  5. 9. Food gives your body the ______ it needs to live
  6. 10. White blood cells kill ______.
Down
  1. 1. System that digests food
  2. 2. Organ that helps you think
  3. 3. Blood travels through tubes called _____.
  4. 7. A group of cells that work together
  5. 8. Tissues in your _____ work together to help you breathe