Across
- 2. can be sold
- 4. piece of wood burned
- 8. a flammable hydrocarbon oil
- 9. Energy derived from burning organic materials
- 12. Farm area with windmills
- 14. layers or dirt
- 15. fuel that is burning
- 16. gas
- 19. only eats plants
- 20. Amount that can be extracted
- 21. Energy energy from the sun
- 23. energy energy sun
- 24. Sedimentary rock
Down
- 1. Uses hot magma
- 3. conservation method
- 5. Energy atomic fission energy
- 6. Nonrenewable energy
- 7. natural coal burn slow
- 10. Electricity produced by waterpower
- 11. knot a joint of pine wood used for fuel
- 13. resources from which metals are obtained
- 17. eats only eat
- 18. topsoil washed or blown away
- 22. Liquid fossil fuel