1) Consult a list of electric generating plants in the United States, available from the U.S. Department of Energy's Energy Information Administration (eia.gov/electricity/capacity), to name five geothermal power plants along with their locations and rated power outputs. 2) Nearly half the states in the United States have at least one geothermal energy facility. Does yours? Research the answer, and give the capacity, in megawatts, or both direct-use geothermal facilities and geothermal electric generating plants in your state. 3) Find the initial cost of a heat-pump system in your area and compare it with the cost of a conventional heating system. Then compare fuel and electricity costs, and make a rough estimate of how long you would have to operate the heat-pump system before its total cost was less than of the conventional system