Science Combined 0653/63 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Phototropism Experiment | Measuring plant growth angles in response to light direction, maintaining fair test conditions, and analyzing graph results.

2. Precipitation Reaction & Filtration | Preparing pure barium sulfate, observing reaction changes, importance of washing precipitate, and minimizing mass loss.

3. Antacid Neutralization Experiment | Designing an investigation on the effect of antacid mass on stomach acid pH, including method, variables, and data processing.

4. Pendulum Motion Analysis | Investigating the effect of length on pendulum period, recording time for oscillations, and identifying proportional relationships.

5. Scale Measurement & Accuracy | Using stopwatches for precise timing, precautions in angle measurement, and ensuring experimental accuracy in physics investigations.

6. Data Processing & Interpretation | Graphing pendulum results, verifying experimental consistency, and explaining oscillation timing methodologies.