Across
- 1. decomposition occurs in this type of oxygen
- 3. some atoms are
- 7. energy of an object due to its position or shape
- 10. also known as burning
- 11. is safer to mine than coal
- 12. emits subatomic particles to become more stable
- 14. the cleanest burning of the fossil fuels
- 16. energy stored in forces holding atomic nuclei together
- 18. percent of the US gets its oil from foreign sources
- 19. most commonly used fossil fuel for electricity generation
- 20. the energy required to change an object's position
Down
- 2. a liquid fossil fuel with a thick viscous texture
- 4. the energy in the movement of molecules
- 5. the energy stored in
- 6. a new form of extraction
- 8. oil that is a mixture of many different hydrocarbons
- 9. the energy of motion
- 12. resources that are replaced quickly
- 13. resources that can never be replaced
- 15. energy associated with the movement of electrons
- 17. the ability to do work