This study aims to develop Science Adventure learning media to improve students' motivation to learn Natural and Social Sciences (IPAS). This research was conducted with development research using the Borg & Gall procedure written in ten stages of development. This research was conducted at MIN 04 Blitar Class V with data collection techniques through observation, interviews, and questionnaires, while data analysis was carried out using the t-test. This study shows that the Science Adventurer learning media is very feasible to use with the validation results from material experts, media experts, and learning experts, each obtaining a score of 94%, 96%, and 94%. This media has also proven effective in improving students' learning motivation, as evidenced by the independent sample t-test, which has a 2-tailed significance value of 0.000. so it can be concluded that the Science Adventure learning media is feasible and effective in improving the motivation to learn IPAS in grade 5 elementary school students