DIY Kaleidoscope

6769_100121036671012_100000193470961_521_4265928_nby: Norm Barstow When I was an Elementary Science Coordinator, I used to visit the five schools in my district and each year introduced the Pringles® Kaleidoscope as part of the Sound and Light unit. At that time I used microscope slides, and it became quite a challenge to have the students line up and tape nine slides to make the triangular prism.  Fortunately, Educational Innovations began to carry Kaleidoscope Mirrors (SM-3), thus making the task much easier.

Here is all you will need to build a Pringles® can DIY kaleidoscope in your classroom.


  • Supply of masking tape
  • Educational Innovations Kaleidoscope Mirrors (SM-3) (3 per student)
  • Pringles® cans and lids with a hole punched in the center bottom (metal part) of the can, using a large nail or drill.
  • Colorful butterfly pattern (included below) or other colorful patterns (cut to fit inside the plastic cap).  Though any colorful print on white paper should work, colorful patterns on clear acetate work best.
  • Supply of newspaper strips
  • Contact Paper or colored paper to cover the outside the Pringles® container


NOTE:    Test the length of the mirror inside the Pringles® can. It should not touch the cap of the Pringles can. It may be necessary for an adult to cut 1/8″ to 1/4″ off the mirrors using sharp scissors or a utility knife in order for it to fit inside the can with the cap on. 1.  Prepare the Pringles® can by punching a hole in the metal bottom of the can to serve as the eye piece. DIY Kaleidoscope   Read the rest of this entry »

Focus on Lenz’s Law

photo copy 2by: Ted Beyer

Ahhh, Eddy Current Tubes – you would never think that a hunk of copper pipe and a magnet could make anyone grin from ear to ear. I just love these things. So simple in appearance, and yet so magical to see and use. Whenever I happen to have a set at home, I soon lose control of them to my wife who is just as fascinated by them as I am.ed100_2 2

Although they can be used in fairly high end physics demonstrations, they are stunning enough that everyone who has a chance to see them is simply amazed.

Just realized – you may not have not seen one, have you? Here’s a video for you:

Kinda cool, huh? So, since I have (hopefully) gotten you to say “wow,” I’ll just bet you are wondering “why” — here’s some science:

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