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Groundwater has been called “the sixth great lake” at times because of its importance and the amount of it available in the Great Lakes region. That’s why each of our collections of lessons about the Great Lakes has a focus on groundwater.
In the first collection, we explore the Water Beyond the Lakes, where students will investigate various features of the Great Lakes basin—including groundwater. In the second collection, we consider the Supply and Demand of Groundwater as threats to the available groundwater impact residents and communities.