Fuel that comes from the remnants of prehistoric organisms.
Commercial Energy Sources
Sources that are bought and sold.
Subsistence Energy Sources
Sources gathered by individuals for their own use.
Conservation of Energy
Energy cannot be created or destroyed; it can only be changed from one form to another.
Energy return on energy invested. (Energy obtained from the fuel/Energy invested to get it)
Using a fuel to generate electricity and produce heat.
A solid fuel formed from the remains of 280-360 million yr old plant materials
Lignite, Sub-bituminous, bituminous, and anthracite.
The four types of coal ranked from lesser to greater age, exposure to pressure, and energy content.
A mixture of hydrocarbons, water, and sulfur that occur in underground deposits.
Uses heat to separate crude oil into gasoline, kerosene, fuel oil, and diesel fuel.
Exists as a part of petroleum in the ground, and in gaseous deposits separate from petroleum.
A slow-moving, viscous deposit of bitumen mixed with sand, water, and clay.
A degraded kind of petroleum that forms when petroleum migrates close to the surface where bacteria metabolize some of the light hydrocarbons and others evaporate.
A graph that shows the point at which world oil production would reach a maximum and the point at which we would run out of oil.
A nuclear reaction in which a neutron hits a larger atomic nucleus, which them splits into 2+ parts.
Uranium 235 (U-235)
The isotope of uranium that undergoes nuclear fission.
The cylindrical tubes that house the nuclear fuel used in nuclear power plants.
Cylindrical devices that can be inserted between fuel rods to absorb excess neutrons, thus slowing/stopping the fission reaction.
Nuclear fuel that can no longer produce enough heat to be used in a power plant, but still emits radioactivity.
High-Level Radioactive Waste
The form of nuclear waste used in fuel rods.
Low-Level Radioactive Waste
The protective clothing, tools, rags, and other things used in routine plant maintenance.
The reaction that occurs when lighter nuclei are forced together to produce heavier nuclei and release heat. This powers the Sun and other stars.