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Showing results 101 to 110 of 110

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In this activity, learners create colorful bead bracelets to wear outside while searching for matching colors in plants. Learners will be surprised by the variety of colors in nature.

$5 - $10 per group Ages 4 - 8 45 to 60 minutes
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In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments.

$1 - $5 per student Ages 6 - 14 45 to 60 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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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 on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.

$1 - $5 per student Ages 6 - 11 1 to 4 weeks
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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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This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.

1 cent - $1 per student Ages 6 - 11 30 to 45 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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In this optics activity, learners investigate afterimages.

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