Across
- 2. a green substance that comes from a plant
- 4. we breath it in
- 5. keeps us warm and allows us to breath in and out
- 6. something that controls all of you cells
- 8. we breath it out
- 9. opposite of heavy
- 10. it is in sweets
Down
- 1. what plants do
- 3. we drink it
- 7. use average to get this