2. Wind Samantha Zrillo, Tiffany Culleny, and Ryan Phraner

3. How is wind created? By the earth’s heat. The air over the land heats up more quickly then air over the water. Therefore, the heated air over the land expands and rises and the cooler air over the sea moves up to take its spot.

4. How it works It is a wind energy system that is made up of turbines. It changes kinetic energy to electrical energy. There are two different kinds of turbines; vertical axis and horizontal axis.

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6. Advantages Even though wind turbines can be very tall they only use a small area of land. So the land can be used underneath. Creates Jobs Free fuel source= Immune to inflation Creates revenue for farmers and rural communities. When a farm is built the cost is known. The advantage to this is that we save energy. Examples: It’s the cheapest alternative energy sources.

7. Disadvantages Examples: Birds can fly into them and die It can ruin landscape They are noisy. Each one can be as loud as a family car travelling at 70 mph In order to produce a lot of energy you need a lot of wind mills. The strength of the wind is not constant and it varies from zero to storm force.

8. Where is there the most wind? The higher you go up the more wind is created.

9. Who uses the most wind energy? Europe and the United States are the two main countries converting wind into energy, but other countries are making strides with it in order to keep up with the Kyto Climate Change Treaty Largest is 7 megawatts Enough to power 5000 houses

10. Different Wind Turbines A new idea to use wind as an energy source is to put a turbine on top of a highway to collect the wind from fast moving cars

11. Works Cited! American Wind Energy Association. 21 Apr. 2009. "Earth4Energy.com - Create Electricity At Home - Renewable Energy. Make A Windmill And Solar Power." 21 Apr. 2009. greenthinkers. Apr. 2007. 28 Apr. 2009.. "Wind Energy." Energy Information Administration - EIA - Official Energy Statistics from the U.S. Government. July 2008. 21 Apr. 2009. "Wind power -." Wikipedia, the free encyclopedia. 21 Apr. 2009.