Across
- 2. energy stored in forces holding atomic nuclei together
- 3. energy of the movement of molecules
- 6. natural underground pressure pushes oil to the surface
- 7. formed from the compression of dead plant material
- 9. used when coal deposits are deep underground
- 12. energy emitted in the form of waves
- 13. energy required to move/change an objects position
- 15. the cleanest burning fossil fuel
- 17. is considered the worst man-made ecological disaster
- 18. the ability to do work
- 19. used when coal deposits are near the surface
Down
- 1. initial pressure diminishes so water of gas is pumped through to push out the oil
- 4. the energy of motion
- 5. another name for hydraulic fracturing
- 7. energy of an object due to its position or shape
- 8. energy stored in chemical bonds between atoms and molecules
- 10. where a large nucleus is broken, two small isotopes of hydrogen fuse to form helium
- 11. energy associated with the movement/flow of electrons
- 14. commonly used process for converting stored chemical energy
- 16. an unstable atom (fuel for a nuclear reactor)