IGCSE Science - Combined (0653) — May–June 2024, Paper 11
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Which characteristic of living organisms is the removal of substances in excess of requirements? A excretion B nutrition C reproduction D respiration
Answer this question and get it marked →A drop of red ink is injected into the centre of a test-tube containing gelatine. Gelatine is a clear substance that allows ink particles to diffuse through it. The diagram shows…
Answer this question and get it marked →Glycogen, protein and starch are large molecules. Which row correctly names the smaller molecules that combine to produce these large molecules? large molecules glycogen protein…
Answer this question and get it marked →Which statement about enzymes is correct? A Enzyme activity always continues to increase as the temperature increases. B Enzyme activity is not affected by pH. C Enzymes are…
Answer this question and get it marked →Vegetarians do not eat meat. Which nutrient in meat do vegetarians need to get from other kinds of food? A fibre B protein C starch D vitamin C
Answer this question and get it marked →Chemical digestion occurs in the alimentary canal so that molecules can be absorbed. Which type of molecules are absorbed? A large insoluble molecules B large soluble molecules C…
Answer this question and get it marked →The diagram shows a section through a leaf. The arrows represent the movement of water by diffusion, evaporation or osmosis. 4 3 2 1 Which arrows represent diffusion and…
Answer this question and get it marked →Which row is correct for inspired air when it is compared to expired air? oxygen carbon dioxide water vapour A higher lower higher B higher lower lower C lower higher lower D…
Answer this question and get it marked →The diagram shows the human gas exchange system. X Which part of the gas exchange system is labelled X? A bronchus B diaphragm C rib D trachea
Answer this question and get it marked →The table shows some data about a student. pulse rate pupil size in eye / beats per minute 68 The student is frightened by a sudden loud noise. Which row shows the results…
Answer this question and get it marked →Which row is correct for asexual reproduction? genetically fusion of number of identical nuclei parents offspring A no yes two B yes no one C no yes one D yes no two
Answer this question and get it marked →The diagram represents a food chain found in the sea. microscopic plants microscopic animals herring fish mackerel fish red fish cod fish How many consumer levels are there? A 1 B…
Answer this question and get it marked →The diagram shows part of the carbon cycle. Which arrow represents combustion? D carbon dioxide in air B A fossil fuels carbon compounds in green plants dead plants C and animals…
Answer this question and get it marked →A fixed mass of argon gas in a sealed container is heated. The pressure inside the container increases. Which statement explains why the pressure increases? A There is an increase…
Answer this question and get it marked →Which processes are physical changes? 1 burning methane gas 2 dissolving sugar in water 3 evaporating ethanol 4 melting an ice cube 5 rusting of iron A 1, 3 and 4 B 1, 4 and 5 C…
Answer this question and get it marked →The nucleon number (mass number) is the total number of ......1...... and ......2...... in the nucleus of an atom. Which words complete this sentence? 1 2 A protons neutrons B…
Answer this question and get it marked →Sodium chloride is represented by NaCl. What is this representation called? A a dot-and-cross diagram B an equation C a formula D a symbol
Answer this question and get it marked →What is observed when molten lead(II) bromide is electrolysed using inert electrodes? A Bubbles of a brown gas appear at the anode. B Bubbles of colourless gases appear at both…
Answer this question and get it marked →Four equations for reactions involving oxidation and reduction are listed. 1 CO2 + 2Mg C + 2MgO 2 H2 + PbO Pb + H2O 3 2Cu + O2 2CuO 4 CO + Fe2O3 2FeO + CO2 Which statement…
Answer this question and get it marked →A mixture of ammonium carbonate and ammonium chloride is heated with aqueous sodium hydroxide. Which gas is produced? A ammonia B carbon dioxide C chlorine D hydrogen chloride
Answer this question and get it marked →An atom of an element in the Periodic Table has the electronic structure 2,8,8. What is the group number of this element? A I B III C VII D VIII
Answer this question and get it marked →Which property is the same for sodium and copper? A colour B density at room temperature C melting point D state at room temperature
Answer this question and get it marked →Three properties of element X are listed. ● X reacts with dilute hydrochloric acid to make hydrogen. ● X is formed when carbon is heated with an oxide of X. ● X does not react…
Answer this question and get it marked →Which processes are used in water treatment? 1 chlorination 2 cracking 3 filtration A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only
Answer this question and get it marked →Which pie chart shows the proportions of gases in clean air? A B C D N2 N2 O2 N2 N2 O2 other O2 CO2 gases O2 CO2 CO2 other other CO2 other gases gases gases
Answer this question and get it marked →Which fraction obtained from petroleum by fractional distillation is used for making chemicals? A bitumen B gasoline C naphtha D refinery gas
Answer this question and get it marked →Which row about alkanes is correct? type of hydrocarbon products of complete combustion A saturated carbon dioxide and hydrogen B saturated carbon dioxide and water C unsaturated…
Answer this question and get it marked →Which row shows apparatus used to measure length, time and volume? length time volume A measuring cylinder metre rule stop-clock B measuring cylinder stop-clock metre rule C metre…
Answer this question and get it marked →Which speed–time graph represents the motion of an object that is moving with constant speed? A B speed speed 0 0 0 time 0 time C D speed speed 0 0 0 time 0 time
Answer this question and get it marked →Samples of three liquids, X, Y and Z, each have a volume of 16 cm3. The mass of each sample is shown. sample mass / g of liquid X 13 Y 16 Z 19 Which liquids have a density less…
Answer this question and get it marked →Which object has a resultant force acting on it? A an object moving at constant speed along a curved path B an object moving at constant speed along a straight path C an object…
Answer this question and get it marked →In three experiments, equal forces of magnitude F move the same block of wood through equal distances x. In experiment 1, the block is raised vertically. In experiment 2, the…
Answer this question and get it marked →In which situation is energy not being transferred? A a book resting on a shelf B an electric current lighting a lamp C an electric kettle heating water D sound travelling through…
Answer this question and get it marked →The temperature of a gas increases. What happens to the molecules of the gas? A Their average speed decreases. B Their average speed increases. C They contract. D They expand.
Answer this question and get it marked →Energy is transferred from the Sun to the Earth through the vacuum of space. Which method of energy transfer is involved? A conduction B convection C evaporation D radiation
Answer this question and get it marked →A ray of light in air strikes the surface of water at an angle of 45. Which diagram shows what happens to the ray after it strikes the surface? A B air 45q air 45q water water C…
Answer this question and get it marked →A student measures the speed of sound. He claps his hands and the sound reflects back from a wall that is 100 m away from him. wall NOT TO SCALE student electronic timer 100 m An…
Answer this question and get it marked →A resistor has a resistance of 4.5 . The resistor is connected to a cell and there is a current of 0.60 A in the resistor. What is the potential difference (p.d.) across the…
Answer this question and get it marked →Why are electrical devices not used near a sink containing hot water? A Hot water causes overheating in the cables. B Hot water causes the fuse to blow. C Water damages the…
Answer this question and get it marked →A 240 V power supply produces a current of 8.0 A in a heater that has a resistance of 30 . The power transferred in the heater is 1.9 kW. What is the rating of an appropriate…
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