The study investigates the influence of project-based learning (PBL) on the development of students’ innovative thinking and creative abilities in chemistry education. As traditional instruction often limits students to passive knowledge acquisition, PBL offers an active, inquiry-based approach that connects chemical theory with real-world applications. In this research, students engaged in practical projects such as developing eco-friendly cleaning agents, designing water purification systems, and creating hydrogen fuel prototypes. These tasks encouraged them to formulate hypotheses, conduct experiments, and present their findings through creative models and collaborative discussions. The study’s findings indicate that PBL significantly enhances learners’ motivation, problem-solving skills, and ability to generate original ideas. Moreover, it fosters interdisciplinary connections between chemistry, biology, environmental science, and technology, promoting a holistic view of science learning. The reflective and collaborative nature of PBL also strengthens communication and critical thinking skills while nurturing ecological awareness and responsibility. Overall, project-based learning transforms chemistry lessons into dynamic environments where students act as researchers and innovators, thus preparing them for future scientific and technological challenges.