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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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In this activity, learners explore how nanosized structures can create brilliant color.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this yummy biology activity (page 3 of the PDF), learners participate in a demonstration of natural selection.

$5 - $10 per group Ages 11 - 18 10 to 30 minutes
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Millions of organisms can live in and around a body of water.

1 cent - $1 per student Ages 8 - adult 45 to 60 minutes
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Did you know that a Slinky makes a handy model of earthquake waves?

$1 - $5 per group Ages 8 - 18 10 to 30 minutes
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In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

$1 - $5 per group Ages 8 - 18 45 to 60 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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The objective of this inquiry-based lesson is for learners to gain an understanding of how increasing ocean acidity can affect the calcification of marine organisms.

Over $20 per group Ages 14 - adult 2 to 4 hours
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In this outdoor activity, learners search for the warmest and coolest, windiest and calmest, wettest and driest, and brightest and darkest spots in an area.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and ho

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity, learners will investigate the part of soil. Explore how clay, silt, and sand make up the dirt in your background. Activity includes step-by-step instructions and extension ideas.

free Ages 4 - adult 10 to 30 minutes
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In this activity, learners investigate passive solar building design with a focus solely on heating.

$5 - $10 per group Ages 14 - 18 4 to 24 hours
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In this data activity, learners will explore shipwrecks from four National Marine Sanctuaries on the West Coast of the United States.

free Ages 14 - adult 1 to 2 hours
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In this outdoor activity, learners compare the moisture released from different kinds of leaves and from different parts of the same leaf, by observing the color change of cobalt chloride paper.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this activity learners will be creating art using a traditional Japanese art style.

$1 - $5 per student Ages 6 - adult 10 to 30 minutes
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This lesson introduces learners to the world of nematodes (roundworms).

$1 - $5 per group Ages 14 - 18 1 to 7 days
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In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.

$1 - $5 per student Ages 11 - 18 10 to 30 minutes
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In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months.

Over $20 per student Ages 8 - 18 1 to 12 months
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In this cooperative learning activity, learners visit ten stations and are challenged to think critically about various conservation questions and issues.

$10 - $20 per group Ages 14 - 18 45 to 60 minutes
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Learners use a mortar and pestle to extract clove oil from cloves using denatured alcohol. They put this oil on paper, which they can take home.

$1 - $5 per group Ages 14 - adult 5 to 10 minutes