A radially polarized filter is placed on an overhead projector stage and a regular (parallel) polarized filter is positioned above it. As expected, the image produced shows four quadrants, alternating light-dark-light-dark. As an optically active solution (corn syrup) is poured between them in a beaker, the image rotates and separates into a beautiful array of spectrum colors. All materials provided are reusable.
Concepts: Visible light spectrum, optical activity.
Time Required: 15 minutes
Materials Provided: Two pieces of polarized filter material and a detailed instruction sheet.
Note: A 600-mL, tall-form beaker, corn syrup, and an overhead projector are needed.
Kaleidoscoptical Activity Demonstration Video
Polarizing filters create a beautiful kaleidoscope of colors when corn syrup is placed between them. Sugar molecules “have a hand” in it!
Flinn Catalog/Reference Manual Page 412
Flinn Middle School Catalog/Reference Manual Page 444
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