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How to Change a Kaleidoscope

When Sir David Brewster invented the kaleidoscope in 1816, it was not as a toy, but as an experiment in ocular science, using reflected light, mirrors and small objects, such as beads, glass and gems, to create symmetrical images. Change the objects, and you change the images. If you and the kids have put together a classic homemade kaleidoscope with a paper-towel tube and wax paper, conduct your own ocular scientific experiments by changing the kaleidoscope's contents.

Things You'll Need

Light source
Wax paper
Scissors
Beads, marbles, glass chips, etc

Instructions

- 1
  Hold the homemade kaleidoscope so the end with the contents is accessible.
- 2
  Hold the wax-paper square covering the end of the kaleidoscope to prevent the contents from spilling. Slide the rubber band off the kaleidoscope tube. The wax-paper square is now free.
- 3
  Pull the wax-paper square from the end of the kaleidoscope to remove the glass beads or other contents. Leave the wax-paper pouch attached to the end of the kaleidoscope.
- 4
  Cut a new square of wax paper the same size as the one that was removed.
- 5
  Choose new objects, such as glass chips, for the kaleidoscope. Place the objects in the wax paper pouch on the end of the kaleidoscope. Place the wax-paper square over the objects at the end the kaleidoscope. Slide the rubber band over the end of the tube to hold the contents and wax-paper square in place.

Educational Toys