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Lesson 3: Alternative Energy Resources
Alternative Energy Resources
The word alternative means a possibility, or substitute, for
something else. Alternative energy resources are energy sources
other than nonrenewable resources, or fossil fuels.
Wind
Wind is an alternative energy resource. An unlimited amount of
wind energy exists on Earth.
Remember the pinwheel? Did you blow on the blades to make
them turn? If you did, you used wind energy to make the pinwheel
turn.
Today wind turbines are used to produce electricity. A group of
wind turbines is called a wind farm.
wind turbines
How is
electricity produced by a turbine? Wind causes the blades
of a wind turbine to turn. The turning of the blades runs the
generator, producing electricity.
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© © RE REGI GION ON 4 4 E EDU DUCA CATI TION ON S SER ERVI VICE CE C CEN ENTE TER R A A ALL LL LL R R RIG IGHT HTS S RE RESE SERV RVED ED
Lesson 3: Alternative Energy Resources
Alternative Energy Resources
The word alternative means a possibility, or substitute, for
something else. Alternative energy resources are energy sources
other than nonrenewable resources, or fossil fuels.
Wind
Wind is an alternative energy resource. An unlimited amount of
wind energy exists on Earth.
Remember the pinwheel? Did you blow on the blades to make
them turn? If you did, you used wind energy to make the pinwheel
turn.
Today wind turbines are used to produce electricity. A group of
wind turbines is called a wind farm.
wind turbines
How is
electricity produced by a turbine? Wind causes the blades
of a wind turbine to turn. The turning of the blades runs the
generator, producing electricity.
