physical science’

This week’s topic: The Electromagnetic Spectrum

Step 1- watch the following:

Watch the video “Video Tour of the Electromagnetic Spectrum” (5 min 3 sec) under the EM Spectrum terms section of the Science Corner. You can also view the video at http://missionscience.nasa.gov/ems/emsVideo_01intro.html.
Watch the video “Visible Spectrum of Light” in the Instructor Insights section this week. You can also watch it https://www.youtube.com/watch?v=MX2gUpYTPls

Step 2- Respond to the following:

How much of the entire Electromagnetic Spectrum can we see with our eyes?
Discuss why you think we evolved to see the specific wavelengths that we do. What is important about these wavelengths considering the planet we live on?
Sunlight is critically important to the existence of life on Earth. Are ALL of the EM waves that the sun gives off “good”? What kinds are not?
How are we protected from the “bad” light wavelengths?

Step 3- Independent research

Research and report uses for non-visible light waves . Select from the following: Microwaves, Radio Waves, Infra Red, Ultra Violet, X-Rays, Gamma Rays. How do we use these electromagnetic waves to help human society? Be sure to share a link to the article you select.

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