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Light and Color Experiments: Electromagnetic Spectrum, Using Spectroscopes

Are your students curious about UV and Infrared light but are unsure what they are? How does the light from a neon sign compare with that from an incandescent or fluorescent bulb? How can you study and compare different types of light. This is a simple experiment that will help you dig into this material.


Questions Answered:

What type of light has a complete spectrum? How does light from a fluorescent bulb differ from that of an incandescent bulb? How can you use a spectroscope to analyze light?


Topics Addressed:

UV light Visible Spectrum 


Learn to use scientific equipment:

Diffraction grating and/or Spectroscopes


Materials Needed

Diffraction grating or spectroscope, fluorescent and incandescent bulbs, lamp


Preparation Time

gather materials


NOTE: This activity is part of the Light, Optics, & Color Unit found here.

Light and Color Experiments: Electromagnetic Spectrum, Using Spectroscopes


    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

    Connect with me: If you have questions or problems, please let me know and I’ll get back to you as soon as I can.


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