Across
- 1. carries oxygen and waste around the body
- 5. average resting heartrate
- 7. example of exercise
- 8. Covid-19, Chicken Pox, flu
- 10. keeps heart lungs and muscles strong
- 11. heart and blood belong to this system
- 12. small living things that cause disease
Down
- 2. a condition in which the body does not work well
- 3. a tool used to study germs
- 4. helps remove germs from your hands
- 6. when you breathe air goes down this tube
- 9. the system that puts oxygen into bloodstream