A two-week summer camp for high school students focused on sustainable polymers was developed and implemented. Students took part in experiments and interactive lessons that demonstrate polymer chemistry fundamentals alongside associated sustainability challenges and opportunities. For example, polymer concepts related to chemical properties (reactivity, structural architecture, molecular weight) and physical properties (density, tensile strength, thermal properties) were discussed, as well as how these properties affect materials' recyclability and degradability. Teaching these important concepts to students is especially timely given the global plastic waste dilemma. Responses to postcourse surveys suggest that students were intellectually engaged while gaining practical laboratory and research skills, broadening their understanding of polymer chemistry and sustainability, and becoming prepared for post high school studies.