Across
- 3. you sweat
- 5. protects your heart and lungs
- 7. system protects you from getting sick
- 9. you need it to stay hydrated
- 10. there is five of these in your body
Down
- 1. they sometimes appear on your body either blue or green
- 2. you can survive with only one of them
- 4. this filters and removes harmful substances
- 6. helps you think
- 8. pumps your blood