2011 California State Science Fair Participants
Walker E. Spence

Project J1522
Walker E. Spence, Grade 8 portrait
How Gross Are Your Greenbacks? A Study Examining the Bacterial and Fungal Contamination on US Paper Currency
Advisor: Mr. Rod Atchley
School: Pacific Collegiate School, Santa Cruz, Santa Cruz County
California State Science Fair / 2011 / Portraits / CalifSF@usc.edu