Electromagnetic Spectrum Poster

Electromagnetic Spectrum Poster
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Electromagnetic Spectrum Lesson Plans

The Electromagnetic Spectrum

By Oliver Smith

The electromagnetic spectrum, or EM spectrum, is all around us. The light we use to see, the microwaves that allow us to use our cells phones, the radio waves used to broadcast music to our cars, and the gamma rays used to treat cancer, are all the same waves varying only by wavelength and frequency. The EM spectrum has far-reaching uses that have changed the way we live. However alongside this, they also come with some hazards. For example, Gamma rays have the most energy and can cause cancer, but there are plenty of other types of radiation that can harm humans. The activities in this guide will help students master the different types of radiation in the EM spectrum.

Electromagnetic Spectrum

Storyboard Description

Have students research one part of the electromagnetic spectrum and create a poster!

Storyboard Text

  • Infrared Radiation
  • Wavelength: 700 nm - 1 mm
  • Frequency: 430 THz - 300 GHz
  • Hazards of intense/exessive exposure: damage to lens and cornea, part of greenhouse effect, skin damage
  • visible light
  • Discovered circa 1800 by William Herschel
  • Infrared Radiation (Infrared Light) is used in:
  • Virtually invisible, longer wavelengths
  • - Night Vision Devices - Astronomy Sensors - Thermal Imaging Cameras - Remote Temperature Sensing - Weather Forecasting
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