energy
Across
- 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
Down
- 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