Passive solar
A use of energy from the Sun that takes advantage of solar radiation without active technology
Active solar energy
A use of technology that captures and stores the energy of sunlight with electrical equipment and devices
Photovoltaic cells
a device, usually made from silicon, which converts some of the energy from light (radiant energy) into electrical energy; another name for a solar cell
Oil
a black, liquid fossil fuel found deep in the Earth; the raw material that petroleum products are made from; gasoline and most plastics are made from oil
Refinery
an industrial plant that heats crude oil (petroleum) so that it separates into chemical components, which are then made into more useful substances
Open-pit mining
A mining technique that creates a large visible pit or hole in the ground
Mountaintop removal
A mining technique in which the entire top of a mountain is removed with explosives
Placer mining
The process of looking for minerals, metals, and precious stones in river sediments
Subsurface / underground mining
a coal mining that takes place several hundred feet below the surface of the Earth; workers and coal enter and exit through a vertical shaft
Reserve
In resource management, the known quantity of a resource that can be economically recovered
Strip mining
The removal of overlying vegetation and “strips” of soil and rock to expose underlying ore
Mine tailings
Unwanted waste material created during mining including mineral and other rock residues that are left behind after the desired metals are removed from the ore
Ore
A concentrated accumulation of minerals from which economically valuable materials can be extracted
Metal
An element with properties that allow it to conduct electricity and heat energy and to perform other important functions
Overburden
soil, rock, and earth materials that are removed in order to mine for materials at the surface of the Earth
Fossil fuels
Fuels derived from biological material that became fossilized millions of years ago
Coal
A solid fuel formed primarily from the remains of trees, ferns, and other plant material that were preserved 280 million to 360 million years ago
Natural gas
A relatively clean fossil fuel containing mostly methane (CH4). It is considered clean because it only produces CO2 and CH4 when burned and no pollutants or carcinogens
Crude oil
A mixture of hydrocarbons such as oil, gasoline, kerosene as well as water and sulfur that exists in a liquid state underground, and when brought to the surface
Tar sands
Slow-flowing, viscous deposits of bitumen or asphalt, mixed with sand, water, and clay; also known as oil sands
Nonrenewable energy resource
An energy source with a finite supply, primarily fossil fuels and nuclear fuels
Renewable energy resources
Sources of energy that are infinite
Particulate matter
Solid or liquid matter suspended in the air. Also known as soot
Carbon monoxide (CO)
A colorless, odorless gas that is formed during incomplete combustion of most materials