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Showing results 1 to 19 of 19
Find the Fat
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Fat is a very important component in our diet. It's the most efficient source of energy in our bodies, and plays an important role in the flavor of foods.
Better Hair Through Chemistry
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In this activity, learners hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity.
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.
Cylindrical Mirror
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In this activity, learners create a cylindrical mirror to see themselves as others see them.
Seeing Your Retina
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In this quick optics activity, learners use a dim point of light (a disassembled Mini MagLite and dowel set-up) to cast a shadow of the blood supply in their retina onto the retina itself.
Ambiguous Cube
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In this activity, learners construct a three-dimensional ambiguous cube to explore visual illusions and how our brains interpret or misinterpret information.
The Game of Life: Stem Cell Edition
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In this activity, learners play a game that models what happens as stem cells differentiate into different cell types.
Bird in the Cage
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.
Size and Distance
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In this activity about depth perception, learners create an optical illusion in a shoe box.
Macro-Microarray
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In this activity, learners explore the "nuts and bolts" of gene chips.
Radiohead
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When you teeth clatter, they make quite the racket disproportionately to how much they actually sound to someone else.
Gray Step
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In this activity, learners discover that it's difficult to distinguish between two different shades of gray when they aren't separated by a boundary.
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.
Cold Metal
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In this activity, learners discover that our hands are not reliable thermometers.
Moiré Patterns
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In this activity about light and perception, learners create and observe moire patterns.
Portable Potable Pressure
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In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.
Blue Sky
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In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.
Benham's Disk
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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.