1. Resistance and Electrical Circuits | Completing a circuit diagram with a voltmeter and ammeter, investigating resistance variation with wire length, estimating resistance from a graph, and explaining how a variable resistor prevents overheating. 2. Density and States of Matter | Calculation of object density, conversion between Celsius and Kelvin, description of particle movement in liquid aluminum, and completion of a method for measuring volume displacement. 3. Magnetism and Electromagnetism | Drawing a magnetic field between two like poles, explaining magnetic levitation in a toy using repulsion, determining force direction in a current-carrying wire within a magnetic field, and calculating wire length in a magnetic field. 4. Forces and Motion | Calculation of compression force in a pen spring, describing an improved method to measure spring compression, determining resultant forces in vector diagrams, and predicting force exerted by a suspended object. 5. Energy and Power in Electric Cars | Calculation of kinetic energy in a moving car, determining time for battery discharge, explaining regenerative braking benefits, and evaluating energy transfer efficiency during battery charging. 6. Work, Efficiency, and Pulleys | Calculation of barrel weight using work and distance, efficiency-based work calculations, sources of energy loss in pulley systems, and designing an experiment to investigate pulley efficiency with varying loads.