IGCSE Sciences - Co-Ordinated (0654) — October–November 2023, Paper 33
12 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Reproduction is one of the characteristics of living things. Complete the definition. Reproduction is the process that makes more of the same kind of ...
Answer this question and get it marked →There are different methods of separating mixtures. Fig. 2.1 shows that distillation is used to separate water from aqueous potassium chloride. The methods listed are…
Answer this question and get it marked →A man is sitting on a beach on a sunny day. The man is out in the Sun for too long and gets sunburned. State the name of the electromagnetic radiation that causes sunburn.
Answer this question and get it marked →Scientists record the area of land that is cleared by deforestation every year. Fig. 4.1 shows a bar chart of the results in one country (area of land cleared by deforestation /…
Answer this question and get it marked →Table 5.1 shows some information about three Group VII elements (columns: element, formula of molecules, colour, metal or non-metal?). bromine: formula blank, orange, non-metal.…
Answer this question and get it marked →Fig. 6.1 shows a double electric hotplate (hotplate A and hotplate B) used to heat food. Fig. 6.2 shows the circuit diagram for the hotplates connected to a 240 V a.c. supply.…
Answer this question and get it marked →Enzymes are only active within a specific pH range. Table 7.1 shows the specific pH range for five different enzymes: A 1-5, B 5-9, C 7-12, D 2-3, E 10-12. Identify the enzyme(s)…
Answer this question and get it marked →Fig. 8.1 shows the apparatus a student uses to investigate the rate of reaction between magnesium and dilute hydrochloric acid. Hydrogen gas is collected in the measuring…
Answer this question and get it marked →Fig. 9.1 shows four energy sources (geothermal, hydroelectric (HEP), nuclear, wind) and four descriptions (produces dangerous waste, unreliable, uses energy from falling water,…
Answer this question and get it marked →Fig. 10.1 is a diagram of a cross-section through a leaf, with a part labelled X and a cell labelled Y. State the name of the part labelled X and the cell labelled Y in Fig. 10.1.…
Answer this question and get it marked →Sodium forms a basic oxide. Carbon forms acidic oxides. State why they are different.
Answer this question and get it marked →Fig. 12.1 is a distance-time graph for two cyclists A and B who are racing for a distance of 1000 m (distance / m on the y-axis 0 to 1000, time / s on the x-axis 0 to 120).…
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