This study aims to examine the effect of a STEM enrichment program on middle school girls' self-efficacy and interest in pursuing STEM careers. The researchers hypothesize that after attending the program, girls will feel more positive about STEM careers and have higher self-efficacy in STEM. They plan to use a mixed methods approach, collecting quantitative and qualitative data via pre- and post-surveys from the 30-50 girls who participate in the 3-week program, which will incorporate activities adapted from an existing STEM curriculum.