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Coal
A hard black substance extracted from the ground and burned to obtain energy; made from the remains of plants and animlas; is a non renewable fossil fuel

Nuclear power
Type of energy that splits atoms to make electricity/energy

Energy
The ability to do work or cause change

Natural gas
A gas usually found above petroleum deposits and burned to release energy; made from the remains of dead plants and animals, a non renewable fossil fuel

Solar Energy
The suns energy is collected and converted to useable energy such as electricity; a renewable resource

Wind Energy
Turbines and windmills use the movement of air and convert it to useable energy such as electricity; a renewable resource

Fossil Fuels
A natural fuel such as coal, oil, or gas formed in the geological past (a LONG time ago), made from the remains of living organisms, always non-renewable.

Geothermal Energy
Heat is harnessed from deep beneath earths surface and converted to useable energy; a renewable resource

Biomass
Biological material such as plant material or animal waste converted to useable energy source; a renewable resource

Ethanol
Fuel that is a gasoline alternative made from plants such as sugar cane, sugar beets, grass, corn, and barley. A Southern company is also experimenting with the kudzu (the vine that ate the South). Considered a renewable resource.

Hydropower
The movement of water through a dam is converted to useable energy, such as electricity. The Chickamauga Damn is an example; a renewable resource

Greenhouse gases
A form of air pollution in which gases are added to the atmosphere that prevent the release of heat energy from our planet. This causes sea temperatures to rise and our polar ice caps to melt.

Pollution
The presence of harmful or unwanted levels of materials in the environment

Recycling
The act of processing things that that have been used so that they may be used again

Renewable resources
An energy resource that is replaceable by within the span of a single human life span, or that cannot be used up. Examples are trees or wind.

Nonrenewable
An energy resource that takes millions of years to form from the remains of plants and animals. They cannot be replaced in a single human lifetime. Examples are coal, oil, and natural gas.

Petroleum
A mixture of solids, liquids, and gases that form from the remains of dead plants and animals over millions of years. Non-renewable.
