Sciences Co-ordinated 0654/63 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Osmosis in Potato Cells | Investigating water movement using different sugar concentrations, mass change analysis, and graphing osmotic balance.

2. Food Testing for Nutrients | Identifying starch, glucose, and protein in potato and apple using Benedict’s, biuret, and iodine solutions.

3. Air Composition & Oxygen Removal | Measuring oxygen percentage in air using iron reaction, volume change calculations, and improving accuracy.

4. Iron Rusting & Environmental Effects | Testing rust formation under different conditions, effects of water and air, and corrosion prevention methods.

5. Optics & Focal Length Determination | Measuring image distance in a converging lens experiment, calculating focal length, and understanding image formation.

6. Heat Transfer & Cooling Rates | Recording temperature changes in cooling water, calculating average cooling rates, and analyzing heat loss patterns.