Energy Review Crossword

5. the natural underground pressure pushes the oil to the surface requiring no additional action.
6. Used when coal deposits are deep underground.
9. forms from the compression of dead plant material
10. the ability to do work
11. a mixture of many different hydrocarbons that must be separated at special facilities called refineries to extract our needed materials
13. occurs in low oxygen conditions
16. natural gas, the cleanest burning of fossil fuels
18. energy of electron movement
19. the worst man-made ecological disaster ever.
21. oil, natural gas, and coal are all types of ______

1. Energy of an object due to its position or shape
2. energy of motion
3. "energy cannot be created or ______, it can only change forms"
4. atoms that emit subatomic particles to become more stable
7. used when coal deposits are close to the surface
8. fossil fuels are a (renewable/nonrenewable) source *select correct option*
12. a form of kinetic energy involving movement of molecules
14. water or gas is injected underground to push oil upwards to be collected.
15. (the fuel for a nuclear reactor) is an unstable atom and often emits a neutron
17. Involves joining 2 atomic nuclei.
20. Involves breaking up an atom’s nucleus