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Electromagnetic Spectrum Demonstrations
It is difficult for students to understand that radio waves and visible waves
and X-rays are all the same "stuff". Some of the performance tasks address
various aspects of the electromagnetic spectrum. This demonstration is especially
suitable for the "Electromagnetic Pasta"
performance task. Students construct a spectrum using different shapes of pasta
and develop analogies for the shapes they have selected to represent the
different bands of radiation within the spectrum. The pasta machine is a simple
way to demonstrate to students that all bands of the spectrum really are made of
the same "stuff"!
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High School
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Wavelength and Frequency (Pasta Machine) html | pdf
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