Across
- 4. The ability to sustain physical activity without becoming excessively tired
- 5. Exercise that increases your heart rate and breathing
- 7. Exercise that involves lifting or using resistance to build muscle
- 8. The gas your body needs during exercise
Down
- 1. The main organs responsible for breathing
- 2. The organ that pumps blood around the body
- 3. The process of taking air into the lungs
- 6. An exercise that involves riding a bicycle to improve fitness