Science Crossword

12345678910111213
Across
  1. 2. Used in digestive system
  2. 4. What is one of the main structures for the respiratory system?
  3. 5. What can help the excretory system function efficiently?
  4. 8. Helps circulatory system
  5. 11. The purifying system
  6. 12. dioxide Leaves the blood with help of respiratory system
  7. 13. What is pumped with nutrients with help of the circulatory system?
Down
  1. 1. What is a main structure in the circulatory system?
  2. 3. What removes waste energy from blood?
  3. 6. Removes waste from blood
  4. 7. What system changes food into nutrients?
  5. 9. system What does sleeping well help?
  6. 10. The blood system
  7. 13. Needed in the nervous system