Solar Homes

Alternative energy sources are energy sources other than the nonrenewable fossil fuels—coal, petroleum, and natural gas. Solar energy, or energy from the sun, is one energy source alternative. A passive solar heating system uses no pumps, fans, or mechanical devices. Insulation and heat storage are important factors in such a system. In this lesson plan, you will investigate the factors that contribute to an energy efficient home, build and model that uses the principle of thermal mass, and learn about differ forms of renewable energies.