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Showing results 1141 to 1160 of 1321

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In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.

free Ages 8 - 18 10 to 30 minutes
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In this outdoor art/environmental activity, learners create designs that will attract attention to animals and plants in particular habitats, and then test whether their designs attracted the "right"

$1 - $5 per group Ages 6 - 14 45 to 60 minutes
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In this game of chance, learners will discover how organisms colonized the Galápagos Islands, experiencing how chance plays a role in the successful dispersal of species to new areas.

free Ages 8 - 11 30 to 45 minutes
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In this game (4th activity on the page) about hearing, learners test their ability to identify various sounds without looking.

free Ages 4 - 14 5 to 10 minutes
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This is a quick activity (on page 2 of the PDF under Stained Glass Activity) about the "Tyndall effect," the scattering of visible light when it hits very small dispersed particles.

$5 - $10 per group Ages 8 - 14 10 to 30 minutes
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In this simple exploratory activity (1st activity on the page), blindfolded learners try to identify mystery items by smell.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes
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In this activity, learners investigate whether more people are squares or rectangles. People with similarly sized heights and arm spans are classified as squares.

free Ages 6 - 11 10 to 30 minutes
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In this activity (described on pages 39-42 of PDF), learners make a paper wheel (on pages 57-60 of PDF) that shows them the relative loudness of different sounds.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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In this outdoor activity, learners discover the wonders of the habitat surrounding them.

$1 - $5 per student Ages 4 - 11 45 to 60 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 create a ripple tank from household materials to study waves. Learners build the tank and then explore by making various types of waves.

1 cent - $1 per student 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 health activity, learners explore breathing, lungs and asthma. Learners test their lung capacity by blowing air into balloons.

$5 - $10 per group Ages 8 - 14 30 to 45 minutes
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Find out what it would be like to have ears shaped differently from your own! Design and make different animal ears then try them out.

1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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In this invention challenge activity, learners create an indoor game for one or two people that gets you moving.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners will make seed orbs to grow new trees and plants. Learners will explore ecology and life cycles as well as stewardship through this activity.

$1 - $5 per student Ages 4 - 14 10 to 30 minutes
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In this invention challenge activity, learners see how many objects they can grab with a homemade "bionic" arm.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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In this activity, learners observe tide pool animals in a touch tank to consider how they survive.

$5 - $10 per group Ages 4 - 11 10 to 30 minutes
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Learners complete a series of hands-on and investigative activities to explore cumulus clouds.

$5 - $10 per group Ages 4 - 11 30 to 45 minutes
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In this outdoor winter activity, learners search for and create hibernation sites that will protect gelatin "animals" from freezing.

$1 - $5 per group Ages 6 - 14 45 to 60 minutes