substance that allows electricity or heat to flow through it easily 4) Electrical energy: one of the most useful forms of energy. It is used in heat and light, which are two very valuable things that would be difficult to live without 5) Electromagnet spectrum: the wide range of wavelengths from lower frequencies such as radio waves, short wave, AM, FM, TV, and radar to infrared rays, visible light and ultraviolet, and, finally, the shorter wavelengths of x-rays and gamma rays 6) Electrons: negatively…
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