Group+1-Research2


 * 1. Watch this video about solar energy, then read the information about solar energy in here a****nd here. After carefully reading the information, explain the positives and negatives of using solar panels to make electricity.**

A negative side of solar energy is that it costs a lot of money to store and purchase it. Another negative side is that the average photovotaic cell is only about 15% to 20% officiant. That means that they can convert 15% to 20% of sunlight into energy. Another negitive side of solar energy is that because they are not that powerful, they are not good to power a whole city. A positive side is that it is a renewable source of energy, unlike fossil fuels.

One negitive side of wind energy is that some people think that wind turbines look ugly and don't want to look at them all day long. Other people think that they are harmful to birds even though only a small precentage of birds die by wind turbines. A positive side is that the wind mills are not expensive.
 * 2. Watch this video about wind energy, then read the information about wind energy here. After carefully reading the information, explain the positivies and negatives of using wind turbines to make electriciy.**


 * 3. Watch the video about coal, then read the information about coal here. After carefully reading the information, explain the positives and negatives about using coal to make electricity.**

Some n egativesides about using coal to make electricity are: A positive of oil is that it's more efficient than coal.
 * It causes global warming and greenhouse effect
 * It causes oil spills which kill animals
 * It takes a long time to produce (is a non-renewable source)
 * The price is high and often goes up