IGCSE Sciences - Co-Ordinated (0654) — October–November 2023, Paper 13
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →1 A person throws a ball which their dog runs after and brings back to them. Which characteristics of living things is the dog showing by this action? A growth and nutrition B…
Answer this question and get it marked →2 The diagram shows a palisade cell from a leaf magnified 250. X The chloroplast labelled X measures 5 mm on the diagram. What is its actual length? A 0.25 mm B 0.05 mm C 0.02 mm…
Answer this question and get it marked →3 Which food test requires heating? A fat B protein C reducing sugar D starch 3
Answer this question and get it marked →4 Which graph is correct? A B rate of rate of enzyme enzyme activity activity pH temperature / °C C D rate of rate of enzyme enzyme activity activity pH temperature / °C
Answer this question and get it marked →5 Plants require various ions to manufacture other molecules. Which row shows the molecules that plants make from magnesium ions and nitrate ions? magnesium ions nitrate ions A…
Answer this question and get it marked →6 What is a good source of vitamin C? A citrus fruits B liver C meat D milk 4
Answer this question and get it marked →7 Which row names the substances carried by xylem vessels and the direction of travel? substances direction of travel A sucrose only leaves to roots B sucrose only roots to leaves…
Answer this question and get it marked →8 What is the expected concentration of oxygen and the water vapour content in expired air? oxygen / % water vapour A 16 saturated B 16 variable C 21 saturated D 21 variable 5
Answer this question and get it marked →9 The graphs show the pupil diameter and heart rate of a person over a period of 30 minutes. The person was given an unexpected shock at one point during the 30 minutes. pupil…
Answer this question and get it marked →10 There are different conditions which may prevent a successful pregnancy. 1 failure of ovulation 2 failure of embryo to implant into uterus lining 3 blockage of oviducts…
Answer this question and get it marked →11 Which combination of sex chromosomes are present in the body cells of a human male? A XX B XY C Y only D YY
Answer this question and get it marked →12 The diagram shows a food chain. mahogany tree caterpillar songbird hawk What is the mahogany tree in this food chain? A carnivore B consumer C herbivore D producer 7
Answer this question and get it marked →13 Which row describes the effects of deforestation? level of risk of carbon dioxide flooding in the air A decreases decreases B decreases increases C increases decreases D…
Answer this question and get it marked →14 The colours in an ink are separated by chromatography. Which diagram shows the assembled apparatus? A B spot of ink spot of ink solvent solvent C D spot of ink spot of ink…
Answer this question and get it marked →15 Which diagram represents a mixture of an element and a compound? A B C D 8
Answer this question and get it marked →16 X and Y are isotopes of the same element. Which statement about X and Y is correct? A They have the same nucleon number but different numbers of protons. B They have the same…
Answer this question and get it marked →17 Dilute hydrochloric acid reacts with sodium carbonate to form sodium chloride, carbon dioxide and water. The equation for the reaction is shown. w HCl + Na2CO3 x NaCl + y CO2…
Answer this question and get it marked →18 The apparatus used for the electrolysis of copper chloride is shown. + – ......1...... ......2...... ......3...... copper chloride Which words complete labels 1, 2 and 3? 1 2 3…
Answer this question and get it marked →19 In which change is the oxide of phosphorus, P2O3, reduced? P4 A D B P4O10 P2O3 P4O6 C P2O5
Answer this question and get it marked →20 A piece of damp blue litmus paper is put in a test-tube of a gas. The litmus paper turns red and then changes to white. What is the gas? A ammonia B carbon dioxide C chlorine D…
Answer this question and get it marked →21 Element X burns in air to produce an oxide. A solution of the oxide has a pH value of 10. What is X? A argon B carbon C magnesium D phosphorus
Answer this question and get it marked →22 The elements in Group I of the Periodic Table are metals. What are the trends as the group is descended? A decrease in melting point and less reactive with water B decrease in…
Answer this question and get it marked →23 Why is argon used in lamps? A It is heavier than air. B It is lighter than air. C It is reactive. D It is unreactive.
Answer this question and get it marked →24 Which statement explains why carbon is used in the extraction of copper from its ore? A It is in Group IV of the Periodic Table. B It is more reactive than copper. C It is a…
Answer this question and get it marked →25 Which substances are needed for iron to rust? A oxygen and water B nitrogen and water C oxygen only D water only
Answer this question and get it marked →26 Which energy source is an example of a fossil fuel? A hydrogen B methane C the Sun D wood
Answer this question and get it marked →27 Molecules of ethene react together to form long chain molecules. What is the name of this type of reaction? A addition polymerisation B cracking C fermentation D thermal…
Answer this question and get it marked →28 The diagrams show four objects, each acted on by only two forces. Which object is in equilibrium? A B 1.0 N 3.0 N 4.0 N 2.0 N C D 1.0 N 2.0 N 2.0 N 2.0 N
Answer this question and get it marked →29 A person wearing snowshoes is walking on snow. snowshoe How do snowshoes decrease the pressure on the snow? A by applying the person’s weight over a larger area B by applying…
Answer this question and get it marked →30 A machine does a certain quantity of work in a certain time. Which changes to the quantity of work done and to the time taken both decrease the power produced by the machine?…
Answer this question and get it marked →31 A sample of liquid cools for 20 minutes. Its temperature is recorded every 2 minutes. The results are shown. time / minutes 0 2 4 6 8 10 12 14 16 18 20 temperature / C 90.8…
Answer this question and get it marked →32 In which of the three states of matter is convection the main method of thermal energy transfer? A liquids and gases B liquids only C solids and liquids D solids only
Answer this question and get it marked →33 The diagram represents a transverse wave. Which labelled arrow represents the wavelength of the wave? C A B D 13
Answer this question and get it marked →34 The sound heard from the siren of a police car becomes quieter and lower pitched as the car moves away from an observer. Which row describes what happens to the amplitude and…
Answer this question and get it marked →35 A bar magnet is brought near to a metal rod. The metal rod is attracted to the magnet. magnet metal rod N S The magnet is then turned around so that the N-pole is on the right.…
Answer this question and get it marked →36 Four resistors are connected into circuits. The current in each resistor and the potential difference (p.d.) across each resistor are shown. Which resistor has a resistance of…
Answer this question and get it marked →37 Two lamps can be connected to a battery either in series or in parallel. Which statement is not a benefit of connecting two lamps in parallel rather than in series? A If one…
Answer this question and get it marked →38 What is the purpose of a fuse in an electric circuit? A to make the circuit more efficient B to protect the circuit from damage by a large current C to provide a constant…
Answer this question and get it marked →39 The diagram shows a current-carrying wire placed between the poles of a magnet. The direction of the current is out of the page. The direction of the force on the wire is shown…
Answer this question and get it marked →40 The nucleus of an atom emits an -particle. How do the number of protons and the number of neutrons in the nucleus change? number of number of protons neutrons A decreases by 2…
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