For centuries people had been aware of the phenomenon of electricity. But they didn?t understand it well enough to put it to any use. Once they did, they began inventing motors, generators, telephones, appliances, and so on. The engineer?s role was learning to unlock the power of natural resources hidden throughout the planet. They figured out how to design the machinery to extract or collect it, the processes to convert it to fuel, and the systems to transmit this power into our homes, schools and factories.
Lesson Synopsis: Students brainstorm a list of the ways they use electricity in their home, explore how to reduce home energy costs using the Energy Saver Website, consider the environmental impacts of power generation, and evaluate the potential effectiveness of roof overhang in reducing home cooling costs.
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