IGCSE Sciences - Co-Ordinated (0654) — October–November 2024, Paper 42
12 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The circulatory system in horses is similar to in humans. Fig. 1.1 is a simplified diagram of the circulatory system in horses; the arrows represent the direction of blood flow.…
Answer this question and get it marked →Carbon dioxide gas is made in many chemical reactions. Tick the two chemical reactions that make carbon dioxide, from: reaction between an acid and a metal; reaction between an…
Answer this question and get it marked →Fig. 3.1 shows a wind turbine used to generate electricity. State one advantage of generating electricity using wind turbines.
Answer this question and get it marked →State the balanced symbol equation for photosynthesis.
Answer this question and get it marked →Fig. 5.1 shows the structures of four carbon compounds: A (ethane, H3C-CH3); B (a poly(ethene) repeat unit with brackets); C (ethanol, CH3-CH2-OH); D (ethene, H2C=CH2). State…
Answer this question and get it marked →Angler fish live in the sea at depths of up to 2000 m. Fig. 6.1 shows an angler fish with a light-emitting lure to attract smaller fish. The frequency of light emitted by the lure…
Answer this question and get it marked →Fig. 7.1 summarises mitosis and meiosis in an organism (a parental cell dividing by mitosis to give cells A, and by meiosis through stages to give cell B). The parental cells in…
Answer this question and get it marked →A student investigates the reaction between calcium carbonate and dilute hydrochloric acid. The student does the experiment using three different sets of conditions, A, B and C.…
Answer this question and get it marked →A student investigates the use of cotton wool to insulate a beaker of hot water at 90 degrees C. The student uses a digital thermometer to measure the temperature of the water in…
Answer this question and get it marked →Fig. 10.1 shows a diagram of human skin, with parts labelled A, B and C. Identify the parts labelled A, B and C in Fig. 10.1.
Answer this question and get it marked →Complete the sentence about electrolysis: Electrolysis is the breakdown of an ... compound when ... or in aqueous solution by the passage of electricity.
Answer this question and get it marked →Polonium is a highly radioactive metal with no stable isotopes. Polonium-210 (polonium, 84) decays to form lead-206 (lead, 82). The decay of polonium-210 is a one-step process.…
Answer this question and get it marked →← October–November 2024 Paper 43 · October–November 2024 Paper 41 →