THE EFFECT OF STEM-PROJECT BASED LEARNING MODEL ON STUDENTS CREATIVE THINKING SKILL ON ENERGY MATERIAL IN LIFE SYSTEMS AT JUNIOR HIGH SCHOOL. universe [Internet]. 2026 Jun. 30 [cited 2026 Sep. 4];7(1):94-100. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/669