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Showing results 61 to 80 of 106

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How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer.

$1 - $5 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners discover which plants and animals have symbiotic relationships and how this impacts each organism.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this environmental science lesson, learners will examine the dangers of mercury and how humans contribute to growing mercury emissions on Earth.

$5 - $10 per group Ages 14 - 18 1 to 2 hours
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In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners play a game to simulate the food chain.

$1 - $5 per group Ages 6 - 11 10 to 30 minutes
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In this biology/ecology activity, learners construct a terrarium out of a tennis ball container. This terrarium is unique because it never has to be watered.

$1 - $5 per student Ages 6 - 11 1 to 4 weeks
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In this two-part activity, learners compare and contrast a variety of life cycles to better understand different organisms and how they develop.

$1 - $5 per group Ages 6 - 11 1 to 7 days
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In this activity, learners explore how to protect their skin while applying pesticides to plants.

$10 - $20 per group Ages 8 - 14 10 to 30 minutes
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In this outdoor activity, learners search for lichen, a combination of a fungus and an alga living together. Lichen grow where most other plants cannot, on rocks, the trunks of trees, logs and sand.

$10 - $20 per group Ages 8 - 18 1 to 2 hours
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Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity/demonstration, learners explore pollen and how insects and animals transport pollen. Learners investigate and compare wind and animal pollination.

$5 - $10 per group Ages 6 - 11 30 to 45 minutes
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Using zebra mussels (Dreissena polymorpha), elodea and an indicator dye, learners study the role of light in photosynthesis.

$10 - $20 per group Ages 14 - 18 1 to 7 days
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In this experiment related to plant biotechnology, learners discover how to prepare and load an electrophoresis gel.

Over $20 per group Ages 11 - adult 1 to 2 hours
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In this outdoor activity, learners release a portion of a lawn from human control—no mowing, no watering, no weeding, no pest control—and then investigate the changes that result over several weeks.

Over $20 per group Ages 6 - 14 1 to 12 months
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In this outdoor activity, learners cut through and investigate rotten logs and then make log-profile puzzles for each other.

Over $20 per group Ages 8 - adult 45 to 60 minutes
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In this activity related to microbes, learners make slides of cells from an onion skin and Elodea (American or Canadian waterweed) to observe under a microscope.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails.

Over $20 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners act as water molecules and travel through parts of the water cycle to discover that it is more complex than just water moving from the ground to the atmosphere.

free Ages 6 - 14 30 to 45 minutes
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In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

$5 - $10 per group Ages 4 - adult 30 to 45 minutes