Across
- 2. From each ____, oxygen passes into the blood.
- 4. You do this to keep active.
- 5. You need this after exercise.
- 7. The muscle which pumps blood around the body.
- 10. This is needed to increase fitness.
- 11. The body does this to cool down.
Down
- 1. Hard exercise increases this.
- 3. You may do this after exercise
- 5. The body does this while you rest.
- 6. How you feel when the body needs water.
- 8. The body feels like this after exercise
- 9. The body does this while you rest.