IGCSE Sciences - Co-Ordinated (0973) — May–June 2024, Paper 31
12 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 parts of a human tooth, with parts labelled A (outer layer) and B (central region). State the names of the parts labelled A and B in Fig. 1.1.
Answer this question and get it marked →A list of metals is shown: aluminium, copper, iron, lead, magnesium, platinum, sodium. Identify from the list the metal that is found in Group I of the Periodic Table.
Answer this question and get it marked →A torch contains two cells, a lamp and a switch connected in series. Fig. 3.1 shows an incomplete circuit diagram for the torch. Complete the circuit diagram in Fig. 3.1 for the…
Answer this question and get it marked →Fig. 4.1 shows a food web from a rainforest environment (banana tree, howler monkey, three-toed sloth, snake, ocelot, jaguar). Construct a food chain from Fig. 4.1 that includes…
Answer this question and get it marked →Ice is a solid, water is a liquid, steam is a gas. Fig. 5.1 shows the different arrangement of particles in three diagrams A, B and C (A widely spaced, B mostly touching…
Answer this question and get it marked →A train travels between two stations X and Y. Fig. 6.1 shows a speed-time graph for the journey (speed/m/s 0-30 vs time/s 0-1200; accelerates, constant speed, then decelerates).…
Answer this question and get it marked →Fig. 7.1 shows a cross-section through human skin with parts labelled A to F. Table 7.1 gives information about two of the parts (one produces sweat, one contracts to erect hair).…
Answer this question and get it marked →Petroleum is separated into different fractions. Table 8.1 shows the percentage composition of a 500 kg sample of petroleum: fraction X 10%, gasoline (petrol) 30%, naphtha 30%,…
Answer this question and get it marked →Fig. 9.1 shows four forces acting on a submarine, moving underwater from right to left (A up, C down, B and D horizontal). State which force A, B, C or D is the weight of the…
Answer this question and get it marked →Fig. 10.1 shows the activity of some bacterial enzymes (A-E) at different temperatures (each peaking at a different optimum). Complete the sentences to describe the results in…
Answer this question and get it marked →A calcium atom has a proton number of 20 and a nucleon number of 40. Deduce the number of protons, neutrons and electrons in this atom of calcium.
Answer this question and get it marked →The driver of a car fills the fuel tank with gasoline (petrol). As the gasoline flows into the fuel tank, the gasoline becomes charged. State the force that causes the gasoline to…
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