This study aimed at identifying how pre-service elementary school teachers’ community consciousness in science studies changed after the COVID-19 pandemic, according to the programmatic change of class on science textbook research and teaching methods in the “Life” domain. For the comparative analysis of their consciousness before and after the pandemic by teams, pre-service elementary school teachers from five departments were selected as research subjects, consisting of eight teams at least each of which consists of three members at least. Before the pandemic, the class on science textbook research and teaching methods in the “Life” domain was conducted in such a way that each group of three members researches one of the ten themes selected from elementary science textbooks and presents the findings. After the pandemic, the class was conducted in a contact-free way that those who were guided by the internet video class on lecture content carried out individual research, team-based integrated inquiry processes, and individual inquiries on a kidney bean’s life cycle. As a result of analyzing their community consciousness in science studies, the pre-service elementary school teachers who participated in the pre-pandemic program showed statistically significantly higher average points in all aspects of self-esteem, fellowship, and self-efficacy than those who participated in the post-pandemic program. Given developing and implementing the post-pandemic program for the contact-free online-based class decreased community consciousness in science studies compared to the face-to-face class, it turned out to be an urgent task to prepare the measures of activating interactions by intensifying online team-based activities and developing various education systems in case of the sustaining necessity of contact-free class.