Across
- 2. chemical battery
- 4. the lung that is bigger
- 5. glucose,starch, cellulose,carbohydrates
- 6. carbon is stored and burned for cars
- 7. causes tar and soot in the lungs
- 8. process that breaks down matter into nutrients
- 10. causes pain in our muscles from exercise
- 11. combines with carbon to form shells
- 12. stomach muscle that helps us breath
- 14. burning of food with oxygen by consumers
- 15. carbon,hydrogen,nitrogen,oxygen,phosphate
- 17. break down dead material and release
- 18. iodine, iron, zinc
Down
- 1. its the rock shells will form into
- 3. green plants that make their own food
- 9. released into atmosphere by respiration
- 13. primary consumer
- 16. tiny air sacs in our lungs