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Showing results 1 to 9 of 9
CD Spinner
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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.
Kaleidoscope
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In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).
Fading Dot
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In this activity, learners play with a fuzzy-colored dot that has no distinct edges seems to disappear. As learners stare at the dot, its color appears to blend with the colors surrounding it.
How Our Environment Affects Color Vision
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In this lab (Activity #1 on page), learners explore how we see color.
Thaumatrope Illusion
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Design and create an optical illusion toy that makes two pictures appear to become one. This is called a thaumatrope and will allow the learner to investigate the phenomenon of persistence of vision.
Sliding Gray Step
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How can you make one shade of gray look like two? By putting it against two different color backgrounds! This activity allows learners to perform this sleight of hand very easily.
Benham's Disk
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In this activity, learners make a Benham Top to explore visual illusions and optics.
Seeing in the Dark
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In this activity (17th on the page), learners investigate why you cannot see colors in dim light.
Thaumatrope
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In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.