Across
- 3. supports your body and helps you keep upright
- 5. joint that connects your arm to your hand
- 7. where digestion begins
- 9. dioxide is exhaled from your lungs
- 10. the process of conversion of food into energy
Down
- 1. covers the whole body
- 2. main organ of the circulatory system
- 4. doing puzzles keeps this organ healthy
- 6. the hard cover protecting the brain
- 8. another name for wind pipe