Green Chemistry, as the team behind this interactive lesson explain, "is a proactive approach to pollution prevention that teaches chemists how to develop products and materials in a manner that does not use hazardous substances, thus avoiding much waste, hazards, and associated costs." This lesson about the basic principles behind Green Chemistry is part of the MIT BLOSSOMS series, a collection of lessons plans that include a video to incorporate into a K-12 classroom alongside a detailed lesson plan. In this lesson, designed for a sixty-minute class session, high school chemistry teacher Ann Lambert leads students in the task of rewriting a lab procedure to make glue in order to make this process less wasteful and more safe. To do so, students participate in this glue-making lab with a critical eye at the beginning of the class session and then work as teams to revise the lab. As students complete this process, Lambert explains the 12 Principles of Green Chemistry. As with all MIT BLOSSOMS lessons, teachers will find all lesson plan materials along with suggestions about how they might adapt this lesson to best fit the needs of their classroom.