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Showing results 241 to 260 of 635

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In this two-part activity, learners investigate buoyancy, density and surface area as well as biodiversity and the relationship between the structure and function of organisms.

Over $20 per group Ages 8 - 18 1 to 2 hours
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In this activity, learners examine ways that Native Americans of the Southwest express their relationship with nature through art.

$5 - $10 per group Ages 4 - 11 30 to 45 minutes
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In this hands-on activity, learners will become familiar with the special adaptations of rainforest plants and discover the conditions needed for tropical trees to survive along with what can impinge

$1 - $5 per group Ages 8 - 11 30 to 45 minutes
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In this activity, learners simulate a wolf and its habitat and observe what happens when the limiting factors change over time.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this data activity, learners analyze data from coral reef snapshots taken by scientists at the Virginia Institute of Marine Science.

free Ages 11 - 18 45 to 60 minutes
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By building a simple watershed with paper and markers and then using a spray bottle to simulate precipitation, learners will understand how pollution accumulates in our water sources, especially from

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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This laboratory activity helps learners understand the concept of biological succession by simulating the process in a microenvironment with various protozoans.

Over $20 per group Ages 14 - 18 1 to 12 months
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In this long-term activity, learners make a home for a colorful community of microorganisms.

$5 - $10 per student Ages 8 - 18 1 to 4 weeks
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In this hands-on activity, learners investigate the functional design of leaves on a tree.

$1 - $5 per group Ages 8 - 14 1 to 2 hours
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Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.

1 cent - $1 per group Ages 14 - adult 5 to 10 minutes
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In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

free Ages 8 - 14 45 to 60 minutes
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In this activity, learners use coverslips to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope.

$10 - $20 per group Ages 8 - 18 1 to 7 days
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In this activity, some learners pretend to be wolves, while the other learners pretend to be the prey of the wolf. The goal of the simulation is to have the wolves work together to survive.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.

$5 - $10 per group Ages 4 - 8 30 to 45 minutes
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In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners will make fish cutouts that propel through the water with the help of surface tension.

$5 - $10 per student Ages 6 - 11 10 to 30 minutes
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This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

free Ages 8 - 18 10 to 30 minutes
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In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.

$1 - $5 per group Ages 4 - 18 45 to 60 minutes
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

free Ages 4 - adult 10 to 30 minutes
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In this activity, learners build one or more edible coral polyps and place them together to form a colony.

$10 - $20 per group Ages 8 - 11 30 to 45 minutes