The exam assesses scientific understanding through topics including the circulatory system, physical and chemical changes, the lunar cycle, flotation principles, exercise impact on breathing, material properties, light refraction and reflection, the rock cycle, and disease-causing organisms. It emphasizes observational analysis, experimental design, data interpretation, and core scientific concepts. Key focus areas are heart function, melting and boiling points, sedimentation, metamorphism, mucus as a defense mechanism, boiling versus evaporation, and light behavior in different mediums. Keywords: circulatory system, melting points, lunar phases, density, respiration, material science, light physics, rock cycle, infectious diseases.