Across
- 2. 2 step in coal
- 4. incomplete decompositon of a living thing
- 5. two usable forms of energy
- 6. nucleus divides
- 10. free falling water to energy
- 13. molecules with hydrogen and carbon bonds only
- 14. fuel from died things
- 15. light, spongy material
Down
- 1. nucleus combines
- 3. magagement of resorces
- 7. 4 step in coal
- 8. 3 step in coal
- 9. energy from steam or heat
- 11. amount of work to the amount of energy used
- 12. solar panels to get solar engery