Determining slope movement and water contamination of quicklime deposits along Lake Winnebago, High Cliff State Park, Wisconsin
This activity has benefited from input from faculty educators beyond the author through a review and suggestion process.
This review took place as a part of a faculty professional development workshop where groups of faculty reviewed each others' activities and offered feedback and ideas for improvements. To learn more about the process On the Cutting Edge uses for activity review, see http://serc.carleton.edu/NAGTWorkshops/review.html.
This page first made public: Aug 8, 2014
Key words: Quicklime, mass wasting, Niagara Escarpment, water pollution, dissolved minerals
Skills and concepts that students must have mastered
Should be able to use a GPS to mark locations
Need to be able to organize data on spreadsheets
Any students with canoeing/kayaking experience are requested (but not required)
How the activity is situated in the course
Content/concepts goals for this activity
2) Practice collecting and organizing data
3) Understanding of processes of mass wasting and processes that can influence it
Higher order thinking skills goals for this activity
2) Extrapolate the effects of the quicklime through time
3) Understanding the effects of human interaction with a landscape even decades after the human events have ceased
Other skills goals for this activity
2) Presenting the results of their research to the community at large
3) Working together in research teams
Description and Teaching Materials
2) Wooden stakes should be placed at several points along the slope. These stakes must be carefully oriented to be vertical initially so slope movement will be indicated by tilting of the stakes. A mark should be placed along the stakes to indicate the initial level of the slope material. (Note: As this is at a state park, the stakes should not be obstructive to the location or make a tempting target for park visitors.) The angle and movement of this slope will be compared to other locations along the Escarpment to determine if the quicklime slope is behaving similarly to other sediment-covered slopes.
3) Water samples will be collected at several locations along the lakeshore, both near the quicklime as well as other points along the shoreline. If assistance can be arranged involving a boat, samples will also be collected farther out from the shoreline. The total dissolved solids will be measured using a conductivity meter.
4) The same water samples will be tested with pH strips.