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

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

In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

Learners build a solar oven from a cardboard pizza box, aluminum foil and plastic. Learners can use their oven to cook S'mores or other food in the sun.

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

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.

In this outdoor activity, learners investigate spider webs and feeding behavior, particularly how spiders trap food in their sticky silk webs while not getting stuck themselves.

In this activity, learners will reuse plastic bags in an interesting way.

In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).

In this activity, learners will create a diagram of the ocean zones and determine what organisms live in each zone.

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

In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

In this outdoor mapping activity, learners explore where plants grow and map plant-distribution patterns.

In this activity, learners receive a labeled plastic film canister containing a material representing a pollutant (i.e. pencil shavings = a beaver's wood chips).

Learners work in teams to investigate how scientists use physical characteristics to classify living things.

In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth.

In this outdoor activity, learners use a mapping technique to become oriented to the major features of an outdoor site.

In this activity, learners will exercise their imaginations and artistic skills. Appropriate for all ages, learners will create unique pieces to jumpstart storytelling sessions.

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.

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