IGCSE Science - Combined (0653) — October–November 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 label shows the cell membrane? The diagram shows a plant cell with four labels A, B, C and D pointing to different parts (the cytoplasm/vacuole region, the nucleus, a…
Answer this question and get it marked →The diagram shows two red blood cells inside a capillary and two tissue cells near this capillary. The two red blood cells are labelled, and the tissue cells are shown just…
Answer this question and get it marked →When a food sample is heated with Benedict's solution, an orange colour appears. Which nutrient must be present in the food? A fat B protein C reducing sugar D starch
Answer this question and get it marked →A student investigates how light affects photosynthesis. The diagram shows an aquatic plant in a beaker of water under an inverted glass funnel, with a measuring cylinder above…
Answer this question and get it marked →Which component of the diet ensures that ingested food passes through the alimentary canal quickly and efficiently? A fats B fibre C protein D vitamins
Answer this question and get it marked →What is the pathway taken by water through a plant? A root hair cell → root cortex cells → xylem → mesophyll cells B root hair cell → root cortex cells → mesophyll cells → xylem C…
Answer this question and get it marked →The diagram shows the human respiratory system, with a structure labelled X (a windpipe/airway leading to the lungs). What is the structure labelled X? A bronchiole B intercostal…
Answer this question and get it marked →Which row shows effects of increased adrenaline secretion on the body? breathing rate size of pupils --- --- --- A decreases decreases B decreases increases C increases decreases…
Answer this question and get it marked →When a seed is germinated in the dark, the shoot grows upwards. What is this growth response? A away from gravity B away from light C towards gravity D towards light
Answer this question and get it marked →Which statement is correct? A Asexual reproduction results in the formation of a zygote. B Asexual reproduction results in genetically identical offspring from one parent. C…
Answer this question and get it marked →The diagram shows the female human reproductive system, with a structure labelled X (the lower part of the system). What is the name of the structure labelled X? A cervix B ovary…
Answer this question and get it marked →The diagram shows a food web. Plants are at the base. Herbivorous insects, voles and rabbits feed on the plants. Carnivorous insects, spiders, lizards, kestrels, stoats and foxes…
Answer this question and get it marked →The diagram shows part of the carbon cycle. Carbon dioxide in the atmosphere is connected by arrows 1 and 2 to animals and plants; arrow 3 links decomposers to the atmosphere;…
Answer this question and get it marked →Which diagram represents a mixture of different molecules? The four boxes show particle (molecule) diagrams: A: a mixture containing pairs of white circles, pairs of black…
Answer this question and get it marked →Some changes are listed. 1 boiling 2 decomposing 3 evaporating 4 oxidising Which changes are physical changes? A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4
Answer this question and get it marked →Water has the chemical formula H2O. Which statement is correct? A Pure water is a mixture because it contains hydrogen and oxygen. B Pure water is an element because it contains…
Answer this question and get it marked →Which two elements combine to form an ionic compound? A carbon and oxygen B copper and zinc C hydrogen and oxygen D magnesium and chlorine
Answer this question and get it marked →Concentrated aqueous sodium chloride is electrolysed and a gas is collected at each electrode. The diagram shows an electrolysis cell of sodium chloride solution with platinum…
Answer this question and get it marked →Which type of reaction occurs when iron is obtained from its oxide using carbon? A combustion B neutralisation C electrolysis D reduction
Answer this question and get it marked →The steps needed to make pure, dry magnesium sulfate crystals from magnesium oxide and dilute sulfuric acid are listed. 1 filter 2 leave to cool 3 add excess magnesium oxide to…
Answer this question and get it marked →Which row describes trends shown by the elements in Group I and Group VII of the Periodic Table as the groups are descended? Group I Group VII --- --- --- A melting point…
Answer this question and get it marked →What is the electronic structure of a noble gas? A 2 B 2,1 C 2,8,2 D 2,8,7
Answer this question and get it marked →Which row explains why carbon is used to extract copper from copper oxide and identifies the type of reaction that occurs during the extraction? explanation type of reaction ---…
Answer this question and get it marked →A 100 cm³ sample of clean air is passed into the apparatus as shown. Air is passed first through a reagent to remove all carbon dioxide, then through a reagent to remove all…
Answer this question and get it marked →Which substance is a greenhouse gas? A carbon monoxide B chlorine C methane D nitrogen
Answer this question and get it marked →Which statement explains why alkanes are saturated compounds? A They are not very reactive. B They contain double covalent bonds. C They contain carbon and hydrogen only. D They…
Answer this question and get it marked →Which statement about alkenes is correct? A They are manufactured in addition polymerisation reactions. B They react with aqueous bromine to give colourless products. C They are…
Answer this question and get it marked →Which expression is the definition of speed? A change in acceleration / time taken B distance travelled / time taken C time taken / change in acceleration D time taken / distance…
Answer this question and get it marked →A solid, rectangular block of wood has length 4.0 cm, width 5.0 cm and height 6.0 cm. The mass of the block is 90 g. What is the density of the wood? A 0.75 g / cm³ B 1.3 g / cm³…
Answer this question and get it marked →Which change cannot be caused by a force acting on an object? A change of mass B change of motion C change of shape D change of size
Answer this question and get it marked →Student R has a mass of 80 kg. Student S has a mass of 50 kg. On day 1, the students walk up the stairs to the top of a building in 15 minutes. On day 2, the students climb a…
Answer this question and get it marked →In which situation is no energy transfer occurring? A a ball falling from rest through the air to the ground B a battery lighting a lamp C a metal block hanging at rest from a…
Answer this question and get it marked →Benzene and glycerine are two substances. The table gives the melting point and the boiling point of benzene and of glycerine. melting point / °C boiling point / °C --- --- ---…
Answer this question and get it marked →Which substances expand when heated? A gases only B liquids only C solids only D solids, liquids and gases
Answer this question and get it marked →A ray of red light enters a triangular glass prism. The ray passes through the prism and emerges travelling in a different direction. The diagram shows the red light ray bending…
Answer this question and get it marked →An object is placed in front of a plane mirror. An image of the object is formed in the position shown (behind the mirror, the same distance from the mirror as the object). The…
Answer this question and get it marked →An uncharged plastic rod is rubbed with a cloth and suspended by an insulating thread. The diagram shows the plastic rod hanging from the insulating thread. The process is…
Answer this question and get it marked →A student sets up a circuit to find the resistance of a length of wire. The circuit diagram shows a cell, a switch, an ammeter (A) in series with the wire, and a voltmeter (V)…
Answer this question and get it marked →What is the circuit symbol for a fuse? The four candidate symbols are: A: a plain rectangle in the wire (resistor symbol). B: a rectangle divided into several segments. C: a…
Answer this question and get it marked →A person uses an electric lawnmower to cut the grass in a garden. The diagram shows a person using a mains-powered lawnmower connected by a cable. Which situations are electrical…
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