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Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.

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

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.