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Main Idea: Windmills could be used to transfer water
Details Windmills have been used for centuries for transferring object, and were invented be the Cretans

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Main idea: Sun's Energy
Details: Sun's Energy takes only eight minutes to reach earth. Some energy bounces off the Earth's atmosphere and back into space. Plants store a small amount of solar energy in their cells. All life on earth is possible because of the small amount that plants store.

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Main: Solar houses
Detail: A solar home collects energy from the Sun to produce electricity

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Main: Wind was used to propel ships by using sails
Detail: "The curved shape of the lateen sail speeds up the air blowing across it... It is this drop in pressure that sucks the boat forward." (p 15)

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Main Idea: Wind Power was not widely recepted in the 1940's.
Detail: They used Fossil Fuels instead.

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Main Idea: What is Geothermal  Energy?
Detail: The heat trapped deep inside earths surface is called geothermal energy. Geo means "earth." Thermal means "heat."

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Main idea: Bacteria can be used for renewable energy by creating gas that can be turned into energy.
Detail: The warm, airless tanks provide a perfect environment for the bacteria to live and reproduce.

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Main Idea: Common geothermal energy sources
Details: hot springs are used as baths in some countries

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Main Idea: What elements make up the sun?
Details: The elements that make up the sun are hydrogen, helium and oxygen.

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Main Idea: The Sun's Energy
Detail: Lots of energy is released when hydrogen changes into helium.

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Main: Fossil Fuels
Detail: The trees in Pine forest on mount Mitchell In North Carolina have been badly damaged by acid rain. (p 15)

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Main Idea: Energy from the tides
Details: "The water then goes out slowly, spinning turbines on its way."

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Main idea: Collection
Details: pancake shape solar cells give off electric when exposed to sun light.

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Main Idea: Wind farms
Detail: The farms are built in places with steady, strong year-round winds like exposed coasts, mountain passes and hilltops.

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Main Idea: Wind Farms
Detail: Wind farms can be used to power tons of homes

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Main Idea: Turbines Are Massive
Detail: Turbines are 200 feet or taller.

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is the ability to do something and you get energy by eating food.

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Main idea: Wind power

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Main Idea: People are concerned that birds are flying into the blades.
Details: Locate wind farms far away from birds and other life.

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Main Idea: Wind's Affects on Earth
Detail: Wind is able to carry air pollution away from where it came from.

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Main Idea: Wind Farms
Details: The windiest place gets a rating of seven. The lowest rating is a one.

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Main Idea: Waterwheels
Details: There are two types of vertical waterwheels, and one type of horizontal waterwheel.

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Main Idea: Wind Farms
Details: Wind farms can power hundreds/thousands of homes.

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Main Idea: Wind Farms
Detail: A large turbine can produce about 1 mega watt of power.

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Main Idea: Turbines are big
Detail: 200 ft

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Main Idea: Wind Energy
Detail: Wind Power is made by spinning turbines.

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Main: Effects of the Environment.

Detail: Wind turbines do not produce harmful waste. They are noisy and some say they have a dreadful appearance.

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Main idea: Energy can change forms.
Detail: Solar panels can convert solar energy to electricity.