What Wavelength Was That?

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A combination of informative text, photos, and graphics comprise this sharp show on electromagnetic radiation. Some slides mention hands-on activities for demonstrating concepts, so if you want to include them you will need to figure out a procedure and materials (not explicitly described). Because this explains electromagnetic radiation in terms of photons and explains the mathematical formula for wavelengths, it may be most appropriate for middle school or high school physical science learners.

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