Overview
An in-depth investigation of magnetism for middle school and high school readers, describing the properties of magnets and their uses. The connection between magnetism and the electricity that is key to modern life is explored--electric currents generate magnetic fields, and magnetic fields, when they alter, can drive electric currents. Electromagnets are used in many devices from the electric bell to pollution-free electric cars. Ultimately, the generation of much of the world's electricity relies on generators in which powerful magnets are used. Other forms of electricity generation and storage through various types of batteries is also explained. Includes diagrams, definitions of science words, experiments, glossary, further resources, and index.
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