Across
- 2. colorless transparent odorless liquid
- 3. chemical reaction
- 7. living organism involing the production of energy
- 8. organell found in large number of most cells
- 9. colorless odorless reactive gas
- 11. light from sun
- 12. a substance wich participate in a chemical reaction
- 13. energy molocule
Down
- 1. colorless odorless gas
- 4. a organell in plants
- 5. involves green pigment chlorophyll and generates oxygen
- 6. inside
- 9. outside
- 10. energy of body cells