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In this activity, learners perform an experiment that replicates the dilemma faced by birds in acquiring food from a confined area.

In this seismic simulation, learners play a "who-dunnit" game to explore earthquakes.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

This online simulation game explores the different consequences of water levels on the Columbia River in the Pacific Northwest.

In this environmental science lesson, learners will examine hazardous chemicals and their effects on human health and the environment.

This activity (located on page 8 of the PDF) introduces learners to the concept of Non-point Source Pollution--what happens when rain washes garbage and other pollutants into rivers and lakes.

In this activity, learners investigate passive solar building design with a focus solely on heating.

In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best.

In this thought-provoking activity, learners plan a hypothetical project to build and operate wind turbines in their community.

In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure.