Energy

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

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