This learning resource focuses on helping students classify changes observed in a campfire as physical or chemical. It guides learners through a scenario at a campfire, describing elements such as wood cracking, smoke rising, and ash formation. The resource includes two activities: the first involves categorizing different observations as either physical or chemical changes, while the second requires students to justify their classification of a chemical change by providing evidence for the formation of a new substance. This exercise aims to enhance students' understanding of the nature of changes that occur in chemical reactions, specifically in the context of a campfire.