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WARM UP: What is a wind farm? How do they help the environment?

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Presentation on theme: "WARM UP: What is a wind farm? How do they help the environment?"— Presentation transcript:

1 WARM UP: What is a wind farm? How do they help the environment?

2 WIND  WATCH Bill NYE : Wind Video fill out worksheet during the video  http://www.youtube.com/watch?v=zMyBheIn 2DA http://www.youtube.com/watch?v=zMyBheIn 2DA

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4 What causes the wind to blow? As the sun warms the Earth's surface, the atmosphere warms too. Some parts of the Earth receive direct rays from the sun all year and are always warm. Other places receive indirect rays, so the climate is colder. Warm air, which weighs less than cold air, rises. Then cool air moves in and replaces the rising warm air. This movement of air is what makes the wind blow. http://www.iptv.org/kids/story.cfm/video/sgir_ 20110602_blowin_wind/video

5 Activity: Weather Map Worksheet front and back finish for homework


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