Across
- 4. reaction it can explode
- 7. it can very powerful
- 8. you breathe it
- 11. acids building protein
- 13. something that is to support a claim
- 14. something that makes things work
- 15. dioxide oxygen and what?
- 16. it makes you healthy
- 18. respiration energy released into cells
Down
- 1. system part of the body to make you breath
- 2. can join together
- 3. something behind something
- 5. system it can transport cells into the body
- 6. argument to make a argument
- 9. glucose molecules connected together
- 10. system takes food in it can break it down
- 12. to make you grow
- 17. something to realise something
- 18. something about the nature world