John Robert McDaris, University of Minnesota Twin Cities, Earth and Environmental Sciences, Minneapolis, MN, United States, Heather Macdonald, College of William & Mary, Williamsburg, VA, United States, Carol J Ormand, Science Education Resource Ctr, Northfield, MN, United States, Ellen A R Iverson, Carleton College, SERC, Northfield, MN, United States, Eric M Baer, Highline College, Physical Science, Des Moines, WA, United States, Jan Hodder, University of Oregon, Eugene, OR, United States and Norlene Emerson, U. of Wisconsin - Richland, Richland Center, WI, United States