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Showing results 141 to 158 of 158

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In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.

$5 - $10 per group Ages 4 - 14 10 to 30 minutes
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This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match.

free Ages 6 - 18 5 to 10 minutes
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In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures.

$5 - $10 per group Ages 6 - 18 5 to 10 minutes
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In this activity, learners construct a device that projects images onto a surface, so they can trace landscapes and other sights.

$10 - $20 per student Ages 8 - 14 1 to 2 hours
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In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

1 cent - $1 per student Ages 14 - 18 10 to 30 minutes
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With little more than a flashlight, a straw, and a plastic lid, make an observatory so you can see the amazing colors in bubbles.

$1 - $5 per student Ages 4 - 11 5 to 10 minutes
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In this activity, learners use a laser pointer, empty soda bottle, rubber plug and water to demonstrate total internal reflection.

free Ages 14 - 18 5 to 10 minutes
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.

Over $20 per group Ages 8 - 18 30 to 45 minutes
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In this optics activity, learners build a spy tool to secretly view things over walls or around corners.

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

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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In this "Sid the Science Kid" activity, learners set up a simple experiment to find out how sunscreen counteracts the effects of the sun.

$5 - $10 per group Ages 4 - 6 2 to 4 hours
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In this activity, learners make prisms from gelatin. Learners then shine light through the prisms and discover what happens. This activity introduces learners to the idea of refraction.

$1 - $5 per student Ages 8 - adult 10 to 30 minutes
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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.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners explore how infrared technology is used by engineers to create equipment and systems for a variety of industries.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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With a laser pointer and some household items, learners can create their own laser light show. They can explore diffuse reflection, refraction and diffraction.

$10 - $20 per group Ages 11 - 18 10 to 30 minutes
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In this optics activity, learners use everyday materials to make a color wheel. When learners spin the wheel like a top, they will be surprised to see all the colors mixing together to appear white.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes