IGCSE Science - Combined (0653) — May–June 2025, Paper 41
9 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fats are broken down in the small intestine by chemical digestion. State the name of the enzyme that breaks down fats.
Answer this question and get it marked →Fig. 2.1 is a photograph of a wind-pollinated flower. The photograph shows the flower head of a wind-pollinated plant with a feathery structure labelled 'carpel' on the left and a…
Answer this question and get it marked →Fig. 3.1 is a diagram showing a cross-section of a bacterial cell. The diagram shows a rod-shaped bacterium with a cell wall and cell membrane enclosing cytoplasm, a region of…
Answer this question and get it marked →Iron is a metal. Fig. 4.1 shows the three physical states of iron. The diagram shows three boxes labelled solid, liquid and gas. Arrow A points from solid to liquid; arrow C…
Answer this question and get it marked →Table 5.1 shows properties of some halogens at room temperature (25 °C) and pressure. halogen melting point / °C state colour --- --- --- --- fluorine −220 gas pale yellow…
Answer this question and get it marked →This question is about ionic compounds. Dilute nitric acid and solid copper oxide react to form copper nitrate. Copper oxide is an insoluble base and copper nitrate is a soluble…
Answer this question and get it marked →Fig. 7.1 shows an electric car. The mass of the car is 2000 kg. The speed of the car increases from 5.0 m/s to 23 m/s in a time of 4.0 s. Complete Fig. 7.2 to show one energy…
Answer this question and get it marked →Fig. 8.1 shows the two tyres of a motorcycle. Tyre A (front) and tyre B (rear) are labelled. Tyre A is full of air and is at the correct pressure. Tyre B is flat and does not have…
Answer this question and get it marked →Fig. 9.1 shows a circuit that contains an electric motor and a light-emitting diode (LED) connected to a direct current (d.c.) power supply. The circuit has the d.c. power supply…
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