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Showing results 1 to 9 of 9
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CD Spinner
Source Institutions
In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.
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Bubble Tray
Source Institutions
In this activity, learners use simple materials to create giant bubbles.
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Bird in the Cage
Source Institutions
In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-693.jpg?itok=AZ43fTrT)
Pie-Pan Convection
Source Institutions
It's difficult to see convection currents in any liquid that's undergoing a temperature change, but in this Exploratorium Science Snack, you can see the currents with the help of food coloring.
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Give and Take
Source Institutions
In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-736.jpg?itok=uvfOfqef)
Polarized Light Mosaic
Source Institutions
In this activity, learners use transparent tape and polarizing material to create and project beautifully colored patterns reminiscent of abstract or geometric stained glass windows--no glass required
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-449.jpg?itok=6yHFlt_u)
On the Fringe (formerly Bridge Light)
Source Institutions
In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.
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Pixel Tube
Source Institutions
In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-763.jpg?itok=bqzFEdLO)
Benham's Disk
Source Institutions
In this optics activity, learners discover that when they rotate a special black and white pattern called a Benham's Disk, it produces the illusion of colored rings.