This Sensing the Invisible, The Herschel Experiment lesson plan also includes:
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Students discuss sunlight and rainbows. They view a picture of the visible light spectrum and discuss the differences in wave length for each color. Students discuss other differences in colors we see when using a prism. They discuss ways to test for differences. Students measure the temperature in different parts of the spectrum. They write a hypothesis about what will happen to each of the thermometers.