Across
- 3. Oxygen and ___________ are needed for respiration
- 5. Your heart beats _________ when you exercise
- 7. We breath out this gas. It is a waste product of respiration
- 12. The faster your heart _____ the faster oxygen and glucose move around the body
- 13. What is the name of the system involving the heart
- 14. Carbon dioxide and energy are produced in respiration. There is something else, what is it?
Down
- 1. The process living organisms must go through to get energy
- 2. The main organ in the respiratory system
- 4. Oxygen and glucose are carried through the body in the __________
- 6. You breath deeper and faster when you exercise so you can get more what?
- 8. What is the name of the system involving the lungs
- 9. Heart rate and breathing rate _____________ when we exercise
- 10. The more you exercise, the more you need this.
- 11. The main organ in the circulatory system