Make a spectroscope

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Finished_product_2Finished_product_2Yesterday morning we made
a spectroscope — a device that breaks light down into a rainbow of component colors — from a

cardboard box and an old DVD. Different light sources give you different rainbows; that’s one way they can tell what elements are present in a star. The plans came from Simon Quellen Field’s scitoys.com, but you can also find them in his book Gonzo Gizmos.
Fluorescent_spectrum_2Fluorescent_spectrum_2

Kathy Ceceri blogs about learning chemistry with her kids at Home Chemistry.

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