13. Wind energy – energy generated from the movement of air Wind moves through a wind turbine which turns an electric generator converting mechanical energy to electrical energy. Power lines are connected to the generator to transfer the electricity produced to homes and businesses.

16. Solar energy – energy from the Sun in the form of heat and light Energy from the Sun is trapped in solar panels where it is converted into electricity Then, wires connected to the panels carry the electricity to homes and businesses

19. Hydroelectric energy – energy generated for heat and electricity using the power of falling water or water moving through a dam Water flows from a reservoir or dam, through a turbine which turns an electric generator converting mechanical energy to electrical energy. The water continues past the turbine and flows out to a river, but power lines are connected to the generator to transfer the electricity produced to homes and businesses. Sources of hydroelectric energy may include: Rivers, Lakes

22. Geothermal energy – energy for from heat found deep inside the Earth’s surface Steam or hot water in a geothermal power plant is heated by the Earth by passing water over extremely hot rocks. Then steam or water goes into a special turbine where the turbine blades spin and the shaft from the turbine is connected to a generator to make electricity. Power lines are connected to the generator to transfer the electricity produced to homes and businesses. Possible sources of geothermal energy may include: Volcanoes, Hot springs, Geysers

25. Biofuels – energy generated through the processing of renewable plant and animal materials Possible examples of biofuels may include: Biomass (trees and grasses), Bioethanol (fermentation of corn and sugar cane), Biodiesel (vegetable oil and animal fats)