The exam explores topics such as human and plant biology, physical processes, material properties, and experimental investigation. Key areas include skeletal muscle movement, plant life cycles, planetary orbits, reversible and irreversible changes, shadow length variability, and electrical conductivity. It emphasizes environmental adaptation, excretory system functions, solubility, sound production, and food chains. Skills tested involve data interpretation, understanding experimental design, predicting outcomes, and classifying materials. Keywords: skeletal muscles, plant pollination, solar system, reversible processes, shadows, electrical conductivity, excretory system, solubility, sound, food chains, environmental adaptation, material classification.