As part of the scientific and educational activities organized by the Civil Engineering Department at the College of Engineering, Al-Mustaqbal University, a scientific activity entitled “Geotechnical Engineering: Theoretical Foundations of Soil Behavior and Its Applications in Structural Design and Soil Improvement” was conducted with the participation of second-year Civil Engineering students. The activity was presented and supervised by Assistant Lecturers Zahraa Hussein Mohammed, Kawthar Haider Abdul Latif, and Farah Hameed Abdul Khudhur. The activity addressed the fundamental principles of geotechnical engineering, highlighting the physical and mechanical properties of soil and the factors affecting its behavior under engineering loads. It also explored the role of geotechnical investigations in selecting appropriate foundations and ensuring structural stability, in addition to introducing the most prominent soil improvement techniques and methods for addressing related geotechnical problems. The activity aimed to enhance students' scientific understanding, develop their ability to connect theoretical foundations with practical engineering applications, and emphasize the importance of soil investigation as one of the essential factors in the success of construction projects and achieving safety and sustainability requirements. This activity reflects the Civil Engineering Department's commitment at Al-Mustaqbal University to developing students' scientific knowledge and specialized skills while strengthening the practical dimension of the educational process in line with the evolving requirements of the engineering profession.