In early 2004 Explorit Science Center (Explorit) contracted with Visitor Studies Services (VSS) to design and conduct an evaluation of Explorit's Health In Your World Project (HIYW). HIYW is a traveling, science-based health education program for children and adults in low-income communities. HIYW features interactive experiments designed to make learning about the human body, health, and healthy choices fun and accessible. The program serves students in grades K-6, and is designed to engage parents and involve them as an integral part of the learning process. The HIYW Project was developed in