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Grade 6
Topic Cloze Quiz
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Sources of Energy
Wind is a type of solar
pollution
energy
hydroelectricity
turbines
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. It is created by the uneven
heating
hydroelectricity
energy
water
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of Earth’s surface by the Sun. Windmills have been used on farms to pump
heating
water
energy
dams
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and grind grain. Some remote areas also used wind-powered
turbines
electric generators
energy
hydroelectricity
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. The need for these lessened when electric companies strung
turbines
energy
wires
electric generators
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across America. On wind farms, wind is converted into electricity using large wind
wires
turbines
electric generators
dams
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. The
dams
water
kinetic
hydroelectricity
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energy of falling water can be harnessed to turn a wheel. Flowing water is used to generate electricity in a process called
hydroelectricity
energy
heating
pollution
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. This method causes little
heating
pollution
energy
hydroelectricity
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and is readily available. However, building large
turbines
electric generators
dams
wires
Select your answer
can damage the environment.