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Bright Line Spectra Lab

Bright Line Spectra Lab
Bright Line Spectra Lab
Bright Line Spectra Lab
Bright Line Spectra Lab
Bright Line Spectra Lab
Bright Line Spectra Lab
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This lab uses a capacitor and tubes of various gases to demonstrate that different atoms and different molecules emit characteristic colors of light when their electrons are excited by an electrical current. To deepen understanding of light color, I have my students wear diffraction grating glasses while observing the tubes. Then they sketch the color components by width/dominance of each component color.

Capacitor, diffraction grating glasses, and gas tubes not included, obviously.

My labs are straightforward. Some of them are paper labs, but the ones that involve significant laboratory setup or calculations to be made on the part of the teacher are written about in a Teacher Notes section at the end of those particular labs. I use relatively safe and inexpensive chemicals. Of course, safety precautions are always noted at the beginning of the lab.

To remove the "Wickline" watermark, select the Watermark from the Insert menu, then select No Watermark.


Science Education by Joshua Wickline is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 United States License.
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