Sparking Curiosity and Building Science Identity: A K–12 Outreach Model Using Electron Microscopy for Semiconductor Literacy

Abstract Electron microscopy (EM) is more than a research tool — it is a window into the invisible and a pedagogical powerhouse waiting to be unleashed in K–12 classrooms. Here we present Under the Scope, a modular, scalable outreach program that places EM at the center of science education, using it to teach semiconductor literacy, core physics, and interdisciplinary thinking through awe-inspiring, hands-on exploration. Developed at Purdue University, this curriculum engages students with real optical and scanning electron microscopes, guiding them to draw connections between natural systems and advanced technologies like solar panels and LEDs. EM becomes not just a tool for learning, but a spark for STEM identity and creativity. This paper presents our framework, implementation, and outcomes, making the case that integrating EM into classrooms can revolutionize how students see science — and themselves.