Alternative Energy Earth and Space 1 Geothermal energy uses heat energy from under the Earth’s surface to heat buildings and also to generate – A building materials B solar power C fossil fuels D electric energy 5.7C 2 A hydroelectric power plant generates electricity by using the energy of which of the following? A Blowing wind B Organic material C Moving water D Earth’s core

Which alternative energy source does this information describe? Earth and Space 3 A student is preparing a presentation about alternative energy resources. The student has found the following information: Which alternative energy source does this information describe? A Hydroelectricity B Solar energy C Biofuels D Wind Blades of a turbine are turned by the movement of water. Does not release pollution into the air. Located near rivers and large lakes. 4 Which of the following sources of energy is classified as an alternative energy source? A Mined coal B Geothermal heat C Crude oil D Natural gas

Fuel Used to Make Electricity Percent Efficiency (%) Alternative Energy Earth and Space 5 Students researched electrical power production and discovered that not all sources have the same efficiency. The data table demonstrate his findings. Based on the data collected, which source of alternative energy is most efficient? A Coal B Wind C Natural gas D Solar Fuel Used to Make Electricity Percent Efficiency (%) Type of Energy Resource Coal 42 Fossil Fuel Wind 36 Alternative Natural Gas 38 Solar 17