This course provides foundational knowledge of hydrogen science and serves as a supplemental course to Hydrogen Technology and Materials. Specifically, this course covers major fields of hydrogen science such as hydrogen energy, hydrogen biomedicine and hydrogen agriculture. As an extension of the aforementioned course, this course intends to help students develop a deep understanding on i) fundamentals of hydrogen; ii) properties of hydrogen; iii) physicochemical reactions of hydrogen production, utilization & storage; iv) basic principles & materials of hydrogen applications; v) key issues in hydrogen science and vi) opportunities & challenges in hydrogen science. This course combines the theories with the frontiers of research, aiming to further improve students’ critical thinking ability and problem-solving skills. In addition, this course is designed with an emphasis on the theories, principles and findings related to most recent advances in the field of hydrogen science. In this course, students will i) learn about the current developments, basic principles and applications related to hydrogen science; ii) acquire knowledge about physicochemical reactions that occur during hydrogen production, utilization & storage processes; iii) develop a knowledge base grounded in the specific applications and key issues of hydrogen science; iv) broaden their horizons with enriched knowledge and improved creative thinking skills.