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In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months.

In this outdoor, beach activity, learners use tennis balls, water balloons and other simple devices to investigate the movement of waves and currents off a sandy beach.

In this field study, learners discover how to collect data in the field and how their efforts can help certain animals, specifically, amphibians.

In this highly physical outdoor activity, learners construct and compare experimental trail sections to select the best trail-construction technique for their site.