Selection: J-14

J-14

Grade level: 10

Word count: 2066 words

Author: Suzanne Schmaeling

Synopsis: The search for alternative fuels heats up as sources of fossil fuels dwindle.

Excerpt: Wind power is free and clean, and is especially effective in areas along the coastline, where there is a steady wind stream. Wind power is used successfully in many places, notably Denmark, which produces about 20 percent of its electricity using this method.

Unfortunately, there are many opponents to wind power, most of whom object to the use of the giant wind turbines. Some opponents express concern that wind turbines have an impact on wildlife, specifically as a danger to birds, and others are opposed to the placement of wind turbines near shorelines because they feel the large (and some say ugly) turbines detract from the natural beauty of the coast. There are also objections to the noise generated by the large turbines, which often are erected in large clusters.

Water is another free energy resource. When the energy in free-flowing rivers is harnessed using dams, hydroelectric power is created. Many hydroelectric plants are in use across the United States and in other countries. There is no pollution involved with this energy source and environmental impact is minimal, but only areas with rivers can take advantage of this type of energy. Scientists are investigating the use of ocean tides to produce energy, perhaps by harnessing the power of waves to produce electricity. This is a relatively new idea, but in the future the ocean may be a major source of energy production.

Question: Reread these two excerpts describing energy sources that come from the earth. In which two ways are they similar?

1. Both are free energy resources.
2. Both work better in certain geographic areas than in others.
3. Both rely on steam to power a generator.
4. Both can harm birds.
5. Both convert the sun's energy into electricity.