IGCSE Science - Combined (0653) — May–June 2024, Paper 41
9 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 shows the structure of the human heart, with parts labelled X, Y, Z, and arrows showing the direction of blood flow (blood without oxygen leaves the heart, blood with…
Answer this question and get it marked →Different methods of separation are used for different types of mixtures. Pure water is separated from a solution of salt and water by distillation. Fig. 2.1 shows the apparatus…
Answer this question and get it marked →Fig. 3.1 shows a pan of water heated on a cooker, with a glass lid and a thermometer dipping into the water; water droplets form on the underside of the glass lid. As the pan is…
Answer this question and get it marked →Fig. 4.1 shows the male reproductive system in humans, with parts labelled A, B, C, D, E. State the letter in Fig. 4.1 that identifies the part that: produces sperm; carries urine…
Answer this question and get it marked →Nitrogen and oxygen react together in a car engine to make nitrogen monoxide, NO. Fig. 5.1 shows part of the energy level diagram for this reaction (energy on the vertical axis…
Answer this question and get it marked →Fig. 6.1 shows a mechanical crane using force P to lift a box from the ground to the top of a building. Force P is 15 000 N. The mass of the box is 1475 kg and the weight of the…
Answer this question and get it marked →Fig. 7.1 shows the pathway taken by water through a plant (from a soil particle, through a root hair cell and root cortex cells, into the xylem, up to the leaf, where cells P and…
Answer this question and get it marked →Ethene, C2H4, is an alkene. Fig. 8.1 shows the structure of an ethene molecule (H2C=CH2). Naphtha is a fraction obtained from the distillation of petroleum. Naphtha undergoes a…
Answer this question and get it marked →Fig. 9.1 shows an electrical circuit with components labelled E, F, G, H and J (E a cell/battery, F a component, G an ammeter A, H two lamps, J a variable resistor). State the…
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