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Showing results 721 to 740 of 875

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In this activity, learners investigate how some butterfly wings get their color.

Over $20 per group Ages 4 - adult 10 to 30 minutes
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When it rains, water can collect on top of and seep into the ground. Water can also run downhill, carrying soil and pollution with it.

Over $20 per group Ages 8 - adult 45 to 60 minutes
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In this activity (p.26 of PDF), learners discover why mushrooms have spots. Learners use a balloon, toilet paper, and water to simulate what happens as mushrooms grow.

1 cent - $1 per group Ages 11 - 14 10 to 30 minutes
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In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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In this outdoor, sensory activity, learners role play as animals trying to identify their "family's" scent and locate their "territory." Learners mark their territories and sniff out other territories

$10 - $20 per group Ages 8 - 14 45 to 60 minutes
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By participating in a seed scavenger hunt, learners examine many adaptations of seeds, including how many seeds a plant makes, how those seeds travel to new locations, and what protects them from pred

$1 - $5 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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This is an activity about turbidity, or the amount of sediment suspended in water.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.

$5 - $10 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners explore dinosaur fossils by making cast models of a T. rex. First, learners read about and research how dinosaur fossils form.

Over $20 per group Ages 6 - 8 4 to 24 hours
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In this activity on page 7 of the PDF (Chemistry—It’s Elemental), learners use iodine to identify foods that contain starch.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this multi-step experiment (page 4 of pdf), learners study tide pools, and then drop a "wave" (a 4-pound bag of beans or birdseed) on a shell to mimic the force of crashing surf on tide pool animal

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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In this outdoor activity/game, learners use thermometers to simulate how lizards survive in habitats with extreme temperatures.

$5 - $10 per group Ages 8 - 18 45 to 60 minutes
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In this outdoor, mystery-solving activity, learners work like detectives, gathering evidence to identify the culprits that are attacking plants.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners create a biosphere in a baggie.

$1 - $5 per student Ages 4 - 11 1 to 7 days
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In this activity (p.24 of PDF), learners make paper with fungi. Learners discover that paper is basically a flat mat of fibers.

$10 - $20 per group Ages 11 - 14 1 to 7 days
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In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

$5 - $10 per student Ages 6 - 14 45 to 60 minutes
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In this activity, learners investigate density as they discover how liquids separate to form density layers. Learners discover what happens when they add syrup, cooking oil, and water to a jar.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.

1 cent - $1 per student Ages 6 - adult 10 to 30 minutes
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In this group activity, learners will explore the characteristics, functions and uniqueness of the mangrove tree.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes