Energy
Across
- 2. the ability to do work and cause a change
- 3. the splitting of an atoms nucleus into two smaller nuclei
- 5. a dark, liquid fossil fuel made up of mostly hydrocarbons
- 8. leftover radioactive material
- 9. rock filled with a mixture of hydrocarbons
- 10. chemical compounds that are derived from oil and used to make products
- 15. typically the practice of digging shafts deep into the ground to find and remove a mineral
- 16. the practice of reducing energy use to meet those goals
- 18. the process in which fuel burns because it combines rapidly with oxygen
- 20. the energy that an object has due to its motion
- 21. nearly always available or replaced in a relatively short time
Down
- 1. generates electricity by controlled fission reactions
- 2. an expression of how much of the energy actually does useful work
- 4. small nuclei of lightweight elements are forced together to form a heavier nucleus
- 6. the energy that holds these particles together in the nucleus
- 7. energy made available by the flow of an electric charge
- 11. an ice like solid that consists of molecules of methane within a crystal network of water molecules
- 12. when sulfide minerals in exposed rock surfaces react with oxygen and rainwater to produce sulfuric acid
- 13. the extraction of a mineral by removing a strip of the layers of soil and rock on top of a mineral deposit
- 14. energy an object has because of its position or shape
- 17. energy cannot be replaced
- 19. when fuel rods produce so much heat that they melt