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Science Olympiad» Disease Detectives Event » National Event Exercises
Skin Cancer Module: Practice Exercises

Skin Cancer: Module 6
Illustration Electromagnetic Spectrum

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The spectrum is divided into seven types of radiation across the top of the diagram from left to right: gamma rays, x-rays, ultraviolet (UV), visible, infrared, microwave, and radio waves.

The diagram indicates that wavelengths increase from short to long as you move across the spectrum from left to right, starting with gamma rays and x-rays (short) and ending with radio waves (long).

UV rays have slightly longer wavelengths than gamma and x-rays. UV rays include UVC, UVB, and UVA rays, which increase in wavelength respectively, from UVC to UVA rays.

Visible rays have longer wavelengths than UV rays.

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This page last reviewed August 27, 2004

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