IGCSE Sciences - Co-Ordinated (0973) — May–June 2024, Paper 12
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Which two characteristics of living organisms are demonstrated by gravitropism? A growth and nutrition B growth and sensitivity C respiration and nutrition D respiration and…
Answer this question and get it marked →By which process does oxygen pass from the alveoli to the blood capillaries in the lungs? A diffusion B osmosis C secretion D transpiration
Answer this question and get it marked →What are the products when oils are digested? A amino acids and glycerol B fats and amino acids C fatty acids and glycerol D fatty acids and sugars
Answer this question and get it marked →The diagram shows part of the human alimentary canal and associated organs, with parts labelled 1, 2, 3 and 4. [Diagram: alimentary canal; 4 = liver, 2 = pancreas, 1 = stomach.]…
Answer this question and get it marked →The diagram shows the cross-section of part of a leaf with cells labelled W, X, Y and Z. [Diagram: leaf cross-section with cells W, X, Y, Z; gas exchange and water loss occur at…
Answer this question and get it marked →A scientist places equal volumes of starch and saliva into a test-tube. After 30 minutes, the mixture is tested with iodine solution. The iodine solution remains brown. Which…
Answer this question and get it marked →The diagram shows some blood viewed under a light microscope (with 7 red blood cells shown). [Diagram: blood smear under the microscope; count the red blood cells.] How many red…
Answer this question and get it marked →Which statement about the composition of expired air, compared with inspired air, is correct? A The percentage of carbon dioxide is decreased and the percentage of water vapour is…
Answer this question and get it marked →Which row about hormones is correct? A means of transport alimentary canal, where produced glands, site of action target organs B alimentary canal, organs, all organs C blood,…
Answer this question and get it marked →The diagram shows the human female reproductive system. Where is the embryo normally implanted to enable it to develop into a healthy fetus? [Diagram: female reproductive system;…
Answer this question and get it marked →Which statement describes a heterozygous genotype? A not pure breeding with two different alleles B not pure breeding with two identical alleles C pure breeding with two different…
Answer this question and get it marked →Which statement about organisms in a food chain is correct? A A carnivore is an organism that gets its energy by eating plants. B A consumer is an organism that gets its energy by…
Answer this question and get it marked →The diagram shows gas exchange by two groups of organisms (producers and consumers) during the hours of darkness, with gases labelled P, Q, R and S exchanged with the atmosphere.…
Answer this question and get it marked →Which statement about atoms is correct? A All atoms contain equal numbers of neutrons and protons. B All atoms of the same element have the same number of neutrons. C The Periodic…
Answer this question and get it marked →Which substances exist as covalent molecules? 1 helium 2 chlorine 3 sodium chloride 4 ethanol A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
Answer this question and get it marked →Which diagram shows the structure of graphite? [Diagrams A-D: carbon structures; A = layers of hexagonal carbon rings (graphite).] A diagram A B diagram B C diagram C D diagram D
Answer this question and get it marked →Which oxides of nitrogen have the same ratio of nitrogen atoms to oxygen atoms? 1 N2O 2 NO 3 NO2 4 N2O4 A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
Answer this question and get it marked →Hydrogen gas is given off when zinc reacts with dilute sulfuric acid. Which piece of apparatus is used to collect the hydrogen gas and measure its volume? A balance B gas syringe…
Answer this question and get it marked →The equation for the reaction between iron(III) oxide, Fe2O3, and carbon is 2Fe2O3 + 3C - 4Fe + 3CO2. Which statement about this reaction is correct? A C is oxidised. B CO2 is…
Answer this question and get it marked →The waste from a factory is acidic. The factory treats the waste with limestone. Which row shows the pH of the waste before and after treatment? A before 6, after 5 B before 6,…
Answer this question and get it marked →White solid X reacts with dilute hydrochloric acid. A gas is produced which turns limewater milky. A flame test on solid X produces a red coloured flame. What is X? A lithium…
Answer this question and get it marked →Different minerals contain different elements. Which mineral contains three non-metallic elements? A chalcopyrite CuFeS2 B cryolite Na3AlF6 C gypsum CaSO4.2H2O D ilmenite FeTiO3
Answer this question and get it marked →Manganese is a transition element. What is a property of manganese? A high melting point B low density C thermal insulator D transparent
Answer this question and get it marked →Which process is used to increase the hardness of a metal? A Mix the metal with a gas. B Mix the metal with another element. C Mix the metal with a polymer. D Mix the metal with…
Answer this question and get it marked →Which compound contains two of the three elements needed in a fertiliser used for plant growth? A potassium carbonate B potassium chloride C potassium nitrate D potassium sulfate
Answer this question and get it marked →Which type of reaction is used to manufacture lime from limestone? A addition polymerisation B cracking C neutralisation D thermal decomposition
Answer this question and get it marked →Poly(ethene) is made from ethene by addition polymerisation. Which word describes ethene in this process? A fuel B catalyst C monomer D solvent
Answer this question and get it marked →The graph shows how the speed of an object varies with time. The speed of the object is v at time t (a straight line from the origin to (t, v)). [Speed-time graph: straight line…
Answer this question and get it marked →The diagram shows a block of metal of mass 72 g with dimensions 2.0 cm x 3.0 cm x 4.0 cm. [Diagram: cuboid 2.0 cm x 3.0 cm x 4.0 cm, mass 72 g.] What is the density of the metal?…
Answer this question and get it marked →Which statement about a resultant force is correct? A An object must have a resultant force acting on it if it is moving. B An object must have a resultant force acting on it if…
Answer this question and get it marked →What is the energy source for a wind turbine that is producing electricity? A chemical potential energy of wind B gravitational potential energy of wind C kinetic energy of wind D…
Answer this question and get it marked →A copper disc has a hole at its centre that is slightly too small to fit over a copper cylinder. [Diagram: copper disc with central hole and a copper cylinder.] How can the disc…
Answer this question and get it marked →The diagram shows a ray of light travelling from glass into air. Which labelled arrow shows the path of the light in the air? [Diagram: ray from glass to air; refracted-path…
Answer this question and get it marked →The diagrams represent two different sound waves, P and Q, drawn to the same scale. Wave Q has a larger amplitude and a higher frequency than wave P. [Displacement-time graphs:…
Answer this question and get it marked →When two different, uncharged, insulating materials are rubbed together, one becomes positively charged and the other becomes negatively charged. What happens to cause the…
Answer this question and get it marked →For which quantities is the unit the volt? A current and potential difference (p.d.) B electromotive force (e.m.f.) and potential difference (p.d.) C electromotive force (e.m.f.)…
Answer this question and get it marked →A 2.0 ohm resistor and a 1.0 ohm resistor are connected in series with a cell. [Circuit diagram: 2.0 ohm and 1.0 ohm resistors in series with a cell.] Which statement about…
Answer this question and get it marked →A coil lies between the poles of a magnet. There is a current in the coil and this causes a turning effect. Which change does not increase the turning effect on the coil? A…
Answer this question and get it marked →An atom of an isotope of strontium (Sr) has a proton number of 38 and contains 52 neutrons. What is the nuclide notation for this isotope? A 52/38 Sr B 90/38 Sr C 38/52 Sr D 90/52…
Answer this question and get it marked →The graph shows the decay curve for a radioactive substance (emissions per minute against time/hours, starting at 800 and halving every 2.0 hours). [Decay curve: emissions per…
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