1. Materials and energy: electrical insulators and conductors (glass, plastic, copper), energy transfers in a lamp and kettle, particle arrangement and movement in solids, measuring tools (balance for flour), chemical change in baking 2. Light and reflection: light travels in straight lines, flame visibility blocked by objects, ray diagram for light, mirror reflection behavior 3. Skeleton and movement: bone labeling (e.g. skull, spine), vertebrate definition (backbone), muscle role in movement, exercise effects on heart rate, energy from food 4. Earth and space: identifying planets by initials (V = Venus, J = Jupiter, E = Earth), Solar System components (planets, moons, asteroids), volcano types (composite vs. shield), eruption location and differences 5. Health and safety: exercise benefits (stronger heart), measuring heart rate over time, risks in cooking (heat), safety practices, baby penguin adaptations (warmth, beak for hatching) 6. Classification and changes: change of state (melting, freezing), quiz on state transitions, cake cooking as chemical reaction, solids like chalk powder flowing, quiz-style question linking states to definitions