Visual Dictionary Online

Theme
Powered by ikonet.com

Energy

The power to perform work, produced from natural phenomena (e.g., the Sun and the wind) or raw materials (e.g., coal and petroleum).
geothermal and fossil energy

GEOTHERMAL AND FOSSIL ENERGY

Geothermal energy uses the Earth’s internal heat and is a renewable energy source; fossil fuels such as coal and petroleum are nonrenewable energy sources.

production of electricity from geothermal energy

production of electricity from geothermal energy

Hot water contained in the ground near a volcano, geyser or thermal source is piped to the surface by drilling to extract steam and produce electricity.

thermal energy

thermal energy

Energy that is produced by turning water into steam through the burning of fuel (e.g., petroleum and coal) or through nuclear reaction.

coal mine

coal mine

The underground or open-pit facilities that are set up around a coal deposit in order to extract it.

oil

oil

Flammable, relatively viscous oily liquid that is used as an energy source; it is made up of various hydrocarbons resulting from the decomposition of plant life over millions of year.