Across
- 5. a chemical substance that is created by some process
- 6. energy from sun
- 8. A liquid compound made of 2 parts; hydrogen, oxygen
- 9. a substance changes into another
- 10. an opening in a leaf
Down
- 1. a chemical substance present at the start of a process
- 2. major source of energy for cellular reactions
- 3. an organism capable of making its own food
- 4. green pigment in chloroplast of photosynthetic organism
- 7. the part if energy that can be released by chemical reaction