The Geosciences Awareness Program (Project GAP), a collaboration between the Ohio State University and Columbus State Community College, was designed to broaden the participation of underrepresented groups in geosciences at both precollege and college levels. As part of Project GAP's precollege initiative, students at five predominantly minority schools in Columbus, Ohio, were introduced to Project GAP's objectives through presentations and related hands-on activities. The methods developed through Project GAP for enhancing precollege students' attitudes toward, and increasing their interest in, geosciences included showing the relevance of geosciences to society, highlighting the salary outlook for geoscientists, and providing examples of distinguished minority geoscientists. The effectiveness of the GAP model for increasing the number of future geoscientists was supported by data collected through pre- and postpresentation surveys of participants.