Across
- 2. examples are fossil fuels
- 4. this uses the most energy in our economy
- 6. industrialized nations use about ___ times more energy per person
- 8. big oil spill in Alaska
- 11. examples of this are wind and solar
- 13. the definition of energy
- 14. what type of energy holds nuclei together
- 17. this is the process of breaking up an atom's nucleus
- 18. if oil is here then this is usually near
- 19. this is the process of joining atomic nuclei
- 20. also known as burning
- 22. fossil fuels are formed from remains of organisms from ___ of years ago
- 23. this can be created during the combustion of fossil fuels
Down
- 1. big oil spill in the Gulf of Mexico
- 3. when no pressure is needed to access oil this is known as
- 5. the energy of motion
- 7. this is also known as fracking
- 9. the US gets ___% of its oil from foreign sources
- 10. the process of creating energy from Uranium is known as a _____ chain reaction
- 12. this is what strikes Uranium-235 breaking it into 2
- 15. the cleanest fossil fuel
- 16. other name for oil
- 20. this used to be our biggest fuel for electricity generation
- 21. happens very deep underground method used to mine coal