IGCSE Science - Combined (0653) — October–November 2023, Paper 41

Fig. 1.1 shows the human alimentary canal and some associated organs, labelled A, B, C, D, E, F (with the stomach also marked). Table 1.1 shows some of the letters, names and…

A student uses inert electrodes to investigate the electrolysis of lead(II) bromide, as shown in Fig. 2.1 (a positive and a negative electrode dipping into lead(II) bromide that…

Fig. 3.1 shows the names of the forces acting on an aircraft flying at a constant speed and at a constant height above the ground (lift up, weight down, thrust forwards, air…

Fig. 4.1 shows part of the breathing system in humans, with part X above a labelled rib. State the name of the part labelled X in Fig. 4.1.

A student does five experiments to investigate the reaction between zinc granules and dilute hydrochloric acid. In each experiment the student measures the volume of gas produced…

Fig. 6.1 shows an incomplete circuit diagram for the heater, two headlamps and two rear lamps in a car, connected to a 12 V supply. The headlamps and rear lamps are switched on at…

Fig. 7.1 shows an insect-pollinated flower. Draw a label line and the letter C to identify a carpel in Fig. 7.1.

Table 8.1 gives information on the percentage composition of the atmosphere of the planet Mars: carbon dioxide 95.0%, nitrogen 1.9%, argon 1.9%. State how Table 8.1 shows that the…

Fig. 9.1 represents a sound wave in air, showing air particles arranged in regions of compression and rarefaction. On Fig. 9.1, draw: a label line and the letter C to the centre…