The usage of videos in undergraduate students' engineering education has gained importance in recent years. Videos, which are used as a supportive tool in traditional engineering education, have become a source of information in online learning environments. The aim of this study is to examine the effects of educational videos on engineering undergraduate students' laboratory applications and its examination of opinions developed within the scope of e-learning. For this purpose, the sample consisting of 50 undergraduate students from the civil engineering department has been used for this research. Pre-test and post-test process conducted within the scope of in this research were resulted in a meaningful difference after the analyses of Paired Samples t-Test (p=0.02) was made. This result shows that online learning platforms in engineering education and educational videos positively affect the students' attitude. In addition, it is found out that educational videos affect the learning process as a useful educational source. Moreover, the instructors' educational videos, which are Digital Learning Materials, positively impact the students' motivation during the courses.