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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 outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter.

$10 - $20 per group Ages 8 - 18 45 to 60 minutes
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In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.

free Ages 8 - 18 45 to 60 minutes
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Agriculturalists have long considered mushroom growing a challenge, largely because you need a piece of benchtop equipment known as a laminar flow hood.

Over $20 per group Ages 11 - adult 1 to 4 weeks
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.

$1 - $5 per group Ages 14 - 18 45 to 60 minutes
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.

$5 - $10 per student Ages 8 - 18 10 to 30 minutes
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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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In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

Over $20 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners model estuaries, artificially enriching both fresh and salt water samples with different amounts of nutrients and observing the growth of algae over several weeks.

$5 - $10 per group Ages 14 - 18 1 to 4 weeks
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In this geology activity (page 3 of the PDF), learners simulate an earthquake with little more than an elastic band and drinking straws.

$1 - $5 per student Ages 14 - 18 10 to 30 minutes
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This board game teaches learners about energy decision making. Players select cards that determine the transportation and home design that will influence their expenses as they play.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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Learners use simple materials to construct a model the Big Dipper. Learners hang the model from a doorway or ceiling and look up at it to see the constellation as seen from Earth.

$1 - $5 per student Ages 8 - 18 30 to 45 minutes
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Learners draw and describe a leaf, and then re-find leaves drawn and described by other learners. Learners can observe leaves outside, or leaves may be brought into the classroom.

free Ages 11 - 18 45 to 60 minutes
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In this activity, learners build an instrument for catching and observing flies. Learners act as entomologists, attract flies into a jar using a slice of apple, and then observe the flies' behavior.

$1 - $5 per group Ages 4 - 18 1 to 4 weeks