The following paper discusses the implementation of context-based learning to introduce the concepts associated to chemistry of cleaning in high-school students. The methodology proposed in Chemie im Kontext was followed and adapted with project-based learning to ensure key concepts were assimilated and related to students' everyday life. In such a way, the focus was drifted to a student-oriented approach in which students used the scientific method to inquire about the way in which cleaning products work from a chemical perspective. A collaborative approach was conducted to deliver a scientific poster that portrayed their work.