Electromagnetic spectrum-->> --Electromagnetic spectrum is different type of radiation(X-rays, Gamma rays, ultravoilet rays, infrared rays, microwaves) release from star including our own sun. --Electromagnetic radiation travels in waves. --Frequency described how many ways per second wavelength producing. --Wavalength measures the individual wave in meters. --Scientist describe the electromagnetic spectrum as a long line at one in 'ly'. --Radio with the longest wave length and lowest frequencies in the spectrum for example tower. --A single radiation wave has a length of a football field. --After radio wave, come micro wave which produce more energy due to shorter wavelengths and higher frequencies for example tv remote. --Cellphone radar and microwaves ovens use microwaves. --Next comes infrared light, the sun fire living creatures and other heat sources all...