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Radio Waves have the longest wavelengths in the spectrum.

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Radio Waves have the longest wavelengths in the spectrum.

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Radio waves can be as long as a football field or as short as a football.

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Microwaves wavelengths can be measured in centimeters. 

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Microwaves wavelengths can be measured in centimeters. 

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The longer microwaves are the waves that heat our food in microwave ovens.

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The heat we feel from the sunlight is infrared. 

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The heat we feel from the sunlight is infrared. 

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The shorter infrared waves are not hot at all. You cannot even feel them.

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Light made up of the various frequencies of colored light.

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Light made up of the various frequencies of colored light.

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Our brain interprets color when electromagnetic radiation of this frequency fall on our retina.

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UV light has shorter wavelengths than visible light.

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UV light has shorter wavelengths than visible light.

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These waves are invisible to the human eye but some insects like bumblebees can see them.

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X-Rays can pass right through our bodies.

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X-Rays can pass right through our bodies.

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X-rays can't travel through bones so they are left as shadows on the images of medical X-rays.

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Gamma rays have the smallest wavelength.

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Gamma rays have the smallest wavelength.

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Gamma rays can kill living cells. Medicine uses this to their advantage to kill cancer cells.