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Radio Waves • Radio waves have the longest wavelength which is longer than 30 centimeters • All radios and televisions use radio waves. • Radio waves are also used in walkie talkies Satellite dish Walkie talkies Microwaves • Microwaves have a wavelength between 1 millimeter and 30 centimeters. • Microwaves (obviously) are used for microwave ovens. (gasp!) • Microwaves are also used in cell phones microwave because they can send messages over long distances. Cell phones Infrared • Infrared waves have a wavelength between 700 nanometers and 1 millimeter • The sun produces infrared which you feel as heat. sun • Infrared also helps your night vision. Night vision Visible light • Visible light's wavelength ranges from 400 nanometers to 700 nanometers • Visible light helps us to see colors. ROY G. BIV • The sun produces a kind of visible light called white light. Sun beam X-rays • X-rays have a wavelength ranging between .001 nanometers and 600 nanometers • X-rays are used to take pictures of your bones because they can go through skin and muscles but not bones. bones • X-rays are also used in public security cameras Security camera Ultraviolet Rays • Ultraviolet rays have a wavelength between 60 nanometers and 400 nanometers • Too much ultraviolet rays can cause sunburn lamp sunburn • They make lamps that use ultraviolet rays that kill bacteria. Gamma Rays • Gamma rays have a wavelength of less than .1 nanometers • Gamma rays are used to treat some forms of cancer Cancer cell • Gamma Rays are also used to kill harmful bacteria in foods hamburger Check Out My Website! • http://www.electromagnet icspectrum.yolasite.com/