energy

2. A mechanical assembly that converts the wind’s kinetic energy, or energy of motion, into electrical energy.
5. A solid blackish fossil fuel formed from organic matter (generally woody plant material) that was compressed under very high pressure and with little decomposition, creating dense, solid carbon structures.
6. Fuel produced from biomass sources and used primarily to power automobiles. Examples include ethanol and biodiesel.
11. A secondary form of energy that can be transferred over long distances and applied for a variety of uses.
12. The practice of reducing energy use as a way of extending the lifetime of our fossil fuel supplies, of being less wasteful, and of reducing our impact on the environment
13. A process to extract shale gas or tight oil, in which a drill is sent deep underground and angled horizontally into a shale formation; water, sand, and chemicals are pumped in under great pressure, fracturing the rock; and gas migrates up through the drilling pipe as sand holds the fractures open

1. Oil in its natural state, as it occurs once extracted from the ground but before processing and refining
3. Any obstruction placed in a river or stream to block the flow of water so that water can be stored in a reservoir. Built to prevent floods, provide drinking water, facilitate irrigation, and generate electricity
4. The use of nuclear energy to generate electricity, accomplished using nuclear fission within nuclear reactors in power plants.
7. A nonrenewable natural resource, such as crude oil, natural gas, or coal, produced by the decomposition and compression of organic matter from ancient life.
8. The generation of electricity using the kinetic energy of moving water, generally by using turbines within dams
9. A fossil fuel produced by the slow underground conversion of organic compounds by heat and pressure
10. A fossil fuel consisting primarily of methane (CH4) and including varying amounts of other volatile hydrocarbon