IGCSE Sciences - Co-Ordinated (0654) — May–June 2024, Paper 43
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 is a diagram of the structure of the human eye, with parts labelled A-G. Table 1.1 shows the names and functions of some of the parts. Complete Table 1.1 (rows: lens /…
Answer this question and get it marked →Petroleum is a mixture of hydrocarbons. State what is meant by a hydrocarbon.
Answer this question and get it marked →Fig. 3.1 shows a speed-time graph for a journey made by a car (speed m/s 0-14 against time / s 0-160; accelerates to 12 m/s in the first 40 s). Use Fig. 3.1 to determine the…
Answer this question and get it marked →Fig. 4.1 shows a cross-section of a leaf, with parts labelled A, B, C, D, E, F, G. State the letter in Fig. 4.1 that identifies the cells that control loss of water vapour from a…
Answer this question and get it marked →Complete Table 5.1 to show the colour of bromine.
Answer this question and get it marked →Fig. 6.1 shows a jellyfish. The jellyfish experiences an upwards force of 2.1 N from the water. The mass of the jellyfish is 0.15 kg. There are no horizontal forces acting on the…
Answer this question and get it marked →Fig. 7.1 is a diagram of the alimentary canal and some of the associated organs in humans. The pH values of some parts are shown: organ Y has pH = 2.0 and organ Z has pH = 7.3.…
Answer this question and get it marked →Fig. 8.1 shows a toy car that is powered by hydrogen gas. The hydrogen gas is made by the electrolysis of water. During the electrolysis, hydrogen ions, H+, gain electrons.…
Answer this question and get it marked →A student is investigating resistance. Fig. 9.1 shows the circuit made by the student: three 2.5 ohm resistors in series, with voltmeter readings V1, V2, V3 across each and a…
Answer this question and get it marked →Fig. 10.1 shows part of a food web from a desert ecosystem (organisms: snake, falcon, spider, kangaroo rat, rabbit, cactus). Use Fig. 10.1 to construct a food chain that contains…
Answer this question and get it marked →Calcium carbonate reacts with hydrochloric acid. The equation for the reaction is: CaCO3 + 2HCl - CaCl2 + H2O + CO2 Describe how the volume of carbon dioxide gas produced in this…
Answer this question and get it marked →Fig. 12.1 shows three types of radiation, alpha, beta and gamma, entering an electric field between two charged plates. The alpha radiation is shown curving towards the negative…
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