This lesson focuses on graphene and its electrical properties and applications. Learners explore nanotechnology and how engineers can harness the differences in how materials behave when small to address challenges in many industries. Learners work in teams to hypothesize and then test whether graphene is an electrical conductor or insulator. They build a simple circuit using everyday items, and create a graphene sample using soft pencils on paper. They observe what they see, extrapolate to broader applications, present their ideas to the group, and reflect on the experience.