Science Combined 0653/23 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Ciliated Cell Function in Bronchi | Movement of mucus towards the trachea to trap and remove dust and pathogens.

2. Auxin and Phototropism | Role of auxin in shoot elongation and its accumulation on the side away from light.

3. Electrolysis of Silver Chloride | Reduction of silver ions at the cathode and oxidation at the anode.

4. Energy Transfer in Chemical Reactions | Exothermic reactions releasing more energy in bond formation than bond breaking.

5. Mass vs. Weight | Weight as the gravitational force acting on mass, distinguishing it from mass as an intrinsic property.

6. Wave Refraction | Frequency remaining constant when a wave moves from one medium to another.