1. Spring extension and experimental accuracy – Analyzing how measurement errors affect the determination of spring extension under tension. 2. Viscosity determination using a ball drop experiment – Evaluating the methodology and calculations involved in determining honey′s viscosity. 3. Electromagnetic induction in a shaker torch – Investigating how a moving magnet generates electrical energy to power an LED. 4. Speed of sound determination using an oscilloscope – Analyzing techniques to measure the speed of sound in air using phase shifts of detected sound waves. 5. Nuclear decay and half-life calculations – Applying decay equations to assess radioactive contamination from caesium-137 at Fukushima. 6. Structural damage assessment from earthquake acceleration data – Using recorded seismic acceleration data to verify displacement claims of a university building.