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

In this activity and/or demonstration, learners illustrate visually and physically that air has weight. Learners balance two equally-inflated balloons hanging from string on a yard stick.

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.

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.