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Showing results 21 to 40 of 43
Chemistry Is Colorful
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In "Chemistry is Colorful" learners explore different materials through paper chromatography.
Three Circles of Pigments
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In this activity, learners overlap the three primary colors to see how all other colors are made.
Color Contrast
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Do you have a hard time matching paint swatches with your furniture? When you consider human perception, color is context dependent.
Sand Activity
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In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from.
How Our Environment Affects Color Vision
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In this lab (Activity #1 on page), learners explore how we see color.
Bone Stress
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In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.
Nature of Dye
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"Nature of Dye" allows participants to create their own dyes and art while exploring how chemicals interact and how these interactions can have real-world applications.
Spectroscope
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In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.
Color Table: Color your perception
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Look at pictures through different color filters and you'll see them in a new way. People have used color filters in beautiful photography or sending secret messages.
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.
Finding Red
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In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.
Give and Take
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In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.
Radial Chromatography
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How many colors make black? Gather as many water soluble black markers as you can find.
Benham's Disk
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In this activity, learners make a Benham Top to explore visual illusions and optics.
CD Spectrometer
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In this activity, learners use a compact disc to make a spectrometer, an instrument used to measure properties of light.
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.
Dye Like A Natural
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In this activity, learners stain fabrics--on purpose!
Laser Jello
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In this activity, learners use gelatin as a lens to investigate the properties of laser light.
On the Fringe (formerly Bridge Light)
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In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.
Build an Overhead Projector Spectroscope
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This activity guide includes instructions for building a spectroscope using a standard classroom overhead projector.