Across
- 2. joining 2 atomic nuclei
- 3. coal deposits near the surface
- 6. coal deposits deep underground
- 7. first law of
- 8. fracking is controversial because it could cause
- 9. what does the reactor contain that is made out of U-235
- 10. energy of motion
- 11. nuclear energy produces no
- 14. cleanest fossil fuel
- 17. breaking up the atom's nucleus
- 19. a neutron strikes a Uranium-235 atom breaking it into 2 atoms
- 20. all fossil fuels
Down
- 1. process for converting stored chemical energy into forms we can use for other things. This is also known as “burning”.
- 4. the two step process of oil extraction
- 5. wind,solar,geothermal
- 12. It is formed from the compression of dead plant material called peat
- 13. is injected underground to push oil upwards to be collected.
- 15. mining uranium is ... than coal
- 16. With secondary extraction, The initial pressure...
- 18. another name for hydraulic fracturing