ELECTROMAGNETiC SPECTRUM! (:

Another topic we have been recently been studying in class is the electromagnetic spectrum. The electromagnetic spectrum is all of the electromagnetic waves that are put in order of smallest to largest frequencies. The electromagnetic spectrum consists of infrared waves, radio waves, visible light, ultraviolet rays, x-rays, and gamma rays. Radio waves have the longest wavelengths and lowest frequencies. An example of something with radio waves would be a microwave, or a television. Infrared waves are waves with shorter wavelengths than radio waves. An example of something that uses infrared waves would be a thermogram (a device that shows the heat of an object using colors). Next, is visible light. Visible light is the colors you can see. The light has shorter wavelengths with higher frequencies. An example of visible light would be the rainbow! After visible light, comes ultraviolet rays. Ultraviolet rays are electromagnetic waves with wavelengths a little bit shorter than visible light. If you go tanning, you are using ultraviolet rays to change the color of your skin. X-rays have wavelengths shorter than ultraviolet rays. People use x-rays to look at bones, to see if there is anything wrong with the structure. Lastly, there is gamma rays. Gamma rays have the shortest wavelengths, but the highest frequencies. Sometimes to kill cancer cells, gamma rays are used. I find it pretty interesting to learn about the electromagnetic spectrum to get a better understanding of things on our planet.