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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

In this activity (on pages 20-23 of PDF), learners build a model of a power plant using simple materials.

In this outdoor activity, learners design devices that will catch prey or gather plants.

In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

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

Water treatment on a large scale enables the supply of clean drinking water to communities.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this lesson plan, learners examine some of the of greenhouse gas emissions sources in their community.

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