Science Combined 0653/41 Oct Nov 2024 | Cambridge IGCSE Past Papers With Mark Scheme

1. Human & Plant Reproduction | Female reproductive system functions, placenta roles, adaptations of male gametes, and differences between human and plant fertilization.

2. Atomic Structure & Periodic Table | Position of sodium and potassium, nucleon number of sodium, lithium and copper ion structure, transition element properties.

3. Forces & Energy Calculations | Gravitational field strength, gravitational potential energy (GPE), and pressure exerted by a wooden block.

4. Photosynthesis & Plant Responses | Effect of humidity on transpiration, photosynthesis balanced equation, and phototropism experiment analysis.

5. Chemical Reactions & Ionic Compounds | Preparing silver chloride and magnesium chloride, pH changes, halogen displacement reactions, and chlorine molecule bonding.

6. Sound Waves & States of Matter | Glockenspiel sound frequency, sound wave nature, refraction of sound in water, and properties of solids, liquids, and gases.

7. Food Chains & Digestion | Identifying trophic levels, energy transfer in ecosystems, enzyme functions, and roles of hydrochloric acid in digestion.

8. Greenhouse Gases & Carbon Cycle | Effects of increased CO₂, sources of carbon dioxide production, hydrocarbon cracking, and reaction conditions.

9. Electric Circuits & Resistance | Components of an electrical circuit, calculating total and individual resistances, and correct voltmeter placement.