Across
- 2. Energy due to motion
- 4. Energy that can't be replaced
- 7. Crystal containing methane and water
- 9. Energy due to position and shape
- 11. Fuel rods produce enough heat to melt
- 13. Fuel rapidly combines with oxygen and burns
- 15. Sulfide minerals in rock react with oxygen and rainwater to make sulfuric acid
- 18. Ability to do work/cause change
- 19. Fossil fuel made mostly of hydrocarbons
- 20. Digging deep down to remove a mineral
- 21. Rock filled with a mix of hydrocarbons
- 22. Energy replaced in a short time
- 23. Extraction of minerals by removing strips
Down
- 1. Nuclei combine with another nuclei
- 3. Radioactive material left over
- 5. Energy made by an electric charge
- 6. Reducing energy use to meet a goal
- 8. How much energy actually does work
- 10. Moist sand and clay containing bitumen
- 12. Energy that holds particles together in the nucleus
- 14. The splitting of an atom's nucleus
- 16. Electricity generated by fission reactions
- 17. Chemical compounds derived from oil