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Counting With Quadrants
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Millions of organisms can live in and around a body of water.

Beach Zonation
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In this outdoor, ocean-side activity, learners investigate the distribution of organisms in the upper region of the intertidal zone.

Salt Water Revival
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In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

Plants Around a Building
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In this outdoor activity, learners discover how the environment around a building affects the growth of plants.

Water Holes to Mini-Ponds
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Dig a hole, line it, fill it with fresh water, and you have a water hole: a good place to study colonization.

Do Your Own Dig
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In this outdoor archaeology activity, learners use mathematical skills and scientific inquiry to generate and process information from their own excavation site.

Pollution Patrol
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

Variation Game
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In this set of outdoor games, learners play the role of monkeys that are trying to get enough resources (food, shelter, and space) to survive.

Clam Hooping
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In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.

Hold It
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In this outdoor activity/field trip, learners investigate the special shapes, holding structures and holding behaviors that real organisms use in streams, rivers, creeks or coast intertidal zones to a

Great Steamboat Race
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In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.

Exploring Ultraviolet (UV) light from the Sun
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In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.

Making Music in Nature
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In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

Hold a Hill
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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.

Feeding Facilitation: A Lesson in Evolution and Sociobiology
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This is an outdoor activity designed to demonstrate evolution of feeding behavior in flocking, schooling or herding animals that maximizes allocation of food resources and enhances survival.

Terrestrial Hi-Lo Hunt
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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.

Give or Take?
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In this outdoor activity, learners work in pairs using their senses—especially touch—to learn more about individual trees.

Desert Water Keepers
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In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.

Can Fishing
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In this outdoor activity, learners go "can fishing" and discover the kinds of aquatic organisms that live in and on submerged cans.

Clear Water, Murky Water
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How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?