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The Magic School Bus and the Electric Field Trip. New York: Scholastic, 2004. Frith, Margaret. Who Was Thomas Alva Edison? New York: Grosset & Dunlap, 2005. Glover, David. Batteries, Bulbs, and Wires. New York: Kingfisher, 2002. Graf, Rudolf F. Safe and Simple Electrical Experiments. New York: Dover, 1973. Parker, Steve. Electricity. New York: Dorling Kindersley, 2005. Other Media Electric Nation. VHS. PBS Home Video, 2002. Tesla: Master of Lightning. VHS. PBS Home Video. Thomas A. Edison—Father of Invention.

The Electric Power Grid 29 Glossary atom [AT-uhm] small amount of material, invisible to the naked eye, that contains the electrons from which electric power is made. Ever ything is made up of atoms. blackout [BLAK-out] nickname for a power failure, referring to the loss of all lights electron [i-LEK-tron] part of an atom that carries an electrical charge power grid [POU-er grid] system through which electricity is produced and distributed throughout a region power plant [POU-er plant] building containing the machiner y used for making power substations [SUBH-stey-shuhns] branch stations, which are smaller than a power plant 30 21st CENTURY SKILLS LIBRARY For More Information Books Aldrich, Lisa J.

Even a small amount of explosives could do serious damage. Or terrorists might hack into power grid computers and cause a massive problem. Acts of vandalism such as starting fires or breaking equipment must also be prevented. As a result, all power plants update security systems regularly and do detailed background checks on employees. Of course, complete security details are not released. Some of the best safeguards are ones the public is never told about. It is almost impossible to exaggerate the importance of electricity and the power grid to our 28 21st CENTURY SKILLS LIBRARY Reliable electric power has become a key part of Americans’ lives in the twenty-first century.

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