Across
- 3. When the energy change is positive
- 5. When a substance reacts with oxygen
- 6. Plants transferring light energy into chemical energy
- 9. A substance with only one type of atom
- 10. An organic way to provide light
- 12. Something that transfers chemical energy into electrical energy
- 14. When Iron reacts with oxygen
- 15. When the energy change is negative
Down
- 1. The chemical change from Gas to Water
- 2. An organic way to clean things
- 4. A substance that contains two different type of atoms
- 7. A natural resource found in forests
- 8. The chemical change from Ice to Water
- 11. An organic way to make you smell nice
- 13. Raising livestock and product crops