This Great Lakes Geology and the Necessity of Locks lesson plan also includes:
Three class periods are required to carry out this science lesson on glacial movement, the Great Lakes basin, and the lock system that allows travel on the lakes. It is an ambitious undertaking as your class experiments with a glacier movement table and constructs a manual lock system. The resource links no longer work, but there is plenty of material to make a complete mini-unit for your earth science or engineering class.
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