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Learners explore three-dimensional geometric frames including cubes and tetrahedrons, as they create bubble wands with pipe cleaners and drinking straws.

$5 - $10 per group Ages 6 - 14 30 to 45 minutes
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In this activity, a lightbulb is placed in front of a concave mirror. The actual lightbulb is not visible to the viewer, but the viewer can see the mirror image of the lightbulb formed in space.

Over $20 per group Ages 8 - 14 30 to 45 minutes
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In this art meets science activity, learners pack silver, ball-shaped ornaments in a single layer in a box to create an array of spherical reflectors.

$5 - $10 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners explore their eye pupils and how they change.

free Ages 8 - 14 10 to 30 minutes
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In this optics activity, learners explore how many objects they can see in a set of mirrors (hinged like a book) at various angles.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners use an old CD to construct a spectroscope, a device that separates light into its component colors.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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Like water drops in falling rain, a CD separates white light into all the colors that make it up.

$1 - $5 per student Ages 6 - 14 5 to 10 minutes
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Learners demonstrate how water can distort, refract and magnify light.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners explore how nanosized structures can create brilliant color.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners create a cylindrical mirror to see themselves as others see them.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity about light and perception, learners create pictures in thin air.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore the invisible infrared radiation from an electric heater.

Over $20 per group Ages 8 - 14 10 to 30 minutes
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Learners use two mirrors to explore how images of images of images can repeat forever.

Over $20 per group Ages 8 - 14 5 to 10 minutes
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In this optics activity, learners work in pairs to explore how mirrors work. Learners use tape to mark the angles needed to see each other's reflection in a wall mirror.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.

1 cent - $1 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes