These four students were also at ISEF 2007 in Albuquerque, New Mexico. (L–r) Whitney Plein, Kirstin Kramer, Shelby Sieren, Ethan Erickson.
In this picture you can clearly see their Science Iowa t-shirts. The back lists all the Iowa Finalists (except, strangely, for the team of Whitney & Kirstin) with their exhibit titles.