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15
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Why does warm air rise?
Warm air expands, becomes less dense, and rises into the atmosphere.
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15
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How do wind turbines make electricity?
Wind pushes the blades, making them spin. The spinning blades turn a generator to produce electricity.
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What is wind?
Wind is moving air.
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What happens when warm air rises?
Cooler, denser air moves in to take its place, creating wind.
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Why is wind energy free?
Wind energy is free because no one owns the sun or the air.
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thief
Give points!
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25
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rocket
Go to first place!
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fairy
Take points!
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banana
Go to last place!
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trap
No points!
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gift
Win 10 points!
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shark
Other team loses 25 points!
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thief
Give points!
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25
15
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How tall can wind turbines be?
Some wind turbines are as tall as 20-story buildings.
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15
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Why is wind considered a safe and good energy source for the future?
Wind is safe, clean, renewable, and will not run out as long as the sun shines.
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Where are good places to build wind turbines?
Good places include areas near water, flat land, mountain passes, and offshore in the ocean.
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15
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What is a wind farm?
A wind farm is a place where many wind turbines are grouped together to make electricity.
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15
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Why does the Earth near the Equator get warmer than the poles?
The Equator receives more of the sun’s energy than the North and South Poles.
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Do wind turbines run all the time? Why or why not?
No, they do not run all the time because sometimes there is no wind or the wind blows too hard.
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15
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Why do dark forests get warmer than deserts?
Dark forests absorb more sunlight, while light desert sands reflect more sunlight.
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eraser
Reset score!
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seesaw
Swap points!
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gift
Win 25 points!
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lifesaver
Give 25 points!
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15
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Why is wind energy considered renewable?
Wind energy is renewable because as long as the sun shines, wind will continue to form.
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