IGCSE Sciences - Co-Ordinated (0973) — May–June 2025, 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 a part of a cross-section of a plant stem (a microscope image showing the arrangement of tissues within the stem). On Fig. 1.1, draw a label line and the letter Y…
Answer this question and get it marked →Fig. 2.1 is a diagram of the human digestive system, with parts labelled A to G by label lines. A points to the mouth/oesophagus region (top), B points to the stomach region, C…
Answer this question and get it marked →Fig. 3.1 is a diagram of a palisade cell from a potato plant. The labelled structures are: chloroplast, cell wall, vacuole, nucleus, mitochondria, cell membrane, cytoplasm.…
Answer this question and get it marked →Fig. 4.1 shows part of a food web on a remote island. The arrows show feeding relationships: primrose plants - caterpillar; primrose plants - leaf beetle; buttercup plants - leaf…
Answer this question and get it marked →Table 5.1 contains information about 6 atoms or ions A, B, C, D, E and F. atom or ion number of protons number of neutrons number of electrons electronic configuration --- --- ---…
Answer this question and get it marked →Sulfuric acid has the formula H2SO4. Determine the relative molecular mass, Mr, of sulfuric acid. [Ar: H, 1; O, 16; S, 32] relative molecular mass = ...............
Answer this question and get it marked →Iron is extracted from its ore by reduction in a blast furnace. Explain what is meant by reduction.
Answer this question and get it marked →Natural gas and petroleum are two fossil fuels. State the name of one other fossil fuel.
Answer this question and get it marked →Fig. 9.1 shows a horse and cart. The horse and cart travel for a distance of 400 m in 300 s. Calculate the average speed of the horse and cart. average speed = ............... m/s
Answer this question and get it marked →The Sun is the closest star to the Earth. State the name of the force that keeps the Earth in orbit around the Sun.
Answer this question and get it marked →A student uses the following equipment to determine the resistance of a lamp: 2 cells ammeter connecting wires lamp switch voltmeter Draw the circuit diagram for the circuit that…
Answer this question and get it marked →A climber climbs to the top of a rock face. At the top, there is snow that is melting in the sunshine. State the melting temperature of water at standard atmospheric pressure.…
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