The difficulty of students in learning chemistry subjects is due to the use of media that is not in accordance with the characteristics of students who want fun-based learning. Therefore. it is necessary to develop a Lego hydrocarbon learning media that is suitable for use as a learning medium for hydrocarbon materials. This study aims to produce a feasible and practical Lego hydrocar... https://www.mariameetsanna.com/product-category/curl-definer/