Sciences Co-ordinated 0654/62 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Tooth Structure & Magnification Calculation | Drawing a shark’s tooth, measuring dimensions, calculating magnification, and comparing similarities and differences with a dog’s tooth.

2. Saliva pH & Dental Decay | Measuring saliva pH, interpreting pH variation graphs, evaluating dental decay risk, and testing starch breakdown by amylase.

3. Gas Volume & Temperature Experiment | Investigating temperature effects on gas volume, graphing results, analyzing anomalies, and explaining experimental constraints.

4. Metal Identification & Chemical Testing | Hydrogen gas test, flame test for metal identification, carbon dioxide production, and chloride ion detection.

5. Electric Circuits & Resistance | Measuring potential difference and current, calculating resistance, comparing resistor arrangements in series and parallel circuits.

6. Pendulum Motion & Experimental Planning | Investigating the relationship between pendulum length and oscillation period, controlling variables, and designing a results table.