Electromagnetic Spectrum
The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes - the visible light that comes from the tube light in your room and the radio waves that come from the T.V. you are watching right now. These are just two types of electromagnetic spectrum. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, UV light, X- rays and gamma rays.
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