Carbon is all around us and available to us in many different forms, yet we can’t see it and often we don’t even know it’s there. Whether it’s a tree, a bird or the ground that we’re walking on, it all consists of carbon. Even indoors, many of the things we use every day – wooden tables, plastic chairs and most of our food – are mostly carbon. The Carbon clues unit is an ideal way to investigate the science of carbon and improve the scientific literacy of students in the classroom in a detective story setting. It provides opportunities for students to investigate their understanding of carbon while they sift through the clues and through immersion and discussion, arrive at their own considered opinion about the implications of using carbon in our journey towards living more sustainably.