Replanting the Rainforest
Students practice problem solving techniques. They interpret data gathered by student researchers in Australia about the effectiveness of various strategies for controlling weed growth in a newly replanted rainforest.
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Biodiversity: El Imposible National Park, El Salvador
Fifth graders explore the concept of how the more diverse an ecosystem is, the more interdependence of species exists within that system. The complex relationships among diverse species are difficult to identify. As species disappear or...