ks3 biology- organ systems

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Across
  1. 4. the system that you use to breath
  2. 7. system made of lots of different organs working together
  3. 10. carries out photosythesis
  4. 11. where the digestive system begins
  5. 13. a process where plants use light to make food
  6. 15. the smallest unit of a living thing
  7. 16. a common ball and socket joint in the arm
  8. 18. a living thing
  9. 21. system the system in the human body made up of bones
  10. 22. the organ that pumps blood around the body
  11. 23. A dense column of nerve cells that connects the peripheral and central parts of the nervous system
  12. 24. bones that surround the lungs
Down
  1. 1. the system that helps you absorb nutrients from food
  2. 2. made of lots of different types of cells
  3. 3. made of different tissue working together
  4. 5. a system that fights infections and diseases
  5. 6. where your food goes into acid to get broken down
  6. 8. a cell that transports oxygen around the body
  7. 9. the system that sends messages to the brain and from the brain
  8. 12. the organ system the heart is at the centre of
  9. 14. the brain of a cell
  10. 17. outer layer of the body
  11. 19. a cell that absorbs nutrients and water from soil
  12. 20. the tube you swallow food down