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.