Mock Exams Practice Y9 PDF
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2024
UCLES
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Summary
This document is a mock exam practice paper for Year 9 Science, likely covering topics such as the human excretory system, elements, heat and temperature. It is an assessment document from UCLES and was made in 2024.
Full Transcript
2 1 Look at the diagram of the human excretory (renal) system. vein E A B C D (a) Complete the table to name the pa...
2 1 Look at the diagram of the human excretory (renal) system. vein E A B C D (a) Complete the table to name the parts labelled A, B, C, D and E. part name of part A B C D E (b) Urea ammonium nitrate is an organic fertiliser. What do plants make using nitrates? © UCLES 2024 S/S9/01 3 2 The table shows information about elements. number of electrons in atomic symbol one atom of one ion of the element the element Li 3 2 Mg 12 10 Al 13 10 Cl 17 18 K 19 18 Ca 20 18 (a) (i) Which atom loses three electrons to form an ion? Circle the correct answer. Li Mg Al Cl K Ca (ii) Which atom forms a negative ion? Explain your answer. (iii) Two elements in the table are in Group 1. Write down the atomic symbols of these two elements. Use the Periodic Table on page 18 to help you. and © UCLES 2023 3146_01 [Turn over 4 (b) Some elements make compounds with ionic bonds. Describe what is meant by the words ionic bond. 3 This question is about heat and temperature. (a) Describe the difference between heat and temperature. (b) Rajiv investigates how the temperature of cold water increases in two different metal containers. He puts the same volume of cold water in each container. He puts the two containers in the sun. black shiny, silver container container (i) Name the equipment Rajiv uses to measure the temperature of the water. © UCLES 2023 3146_01 5 (ii) Look at the graph showing how the temperature of the water in each container increases with time. temperature black container shiny silver container time The black container gains the most thermal energy. Explain how you know from the graph. (iii) Explain why the black container gains more thermal energy by radiation. (c) Explain how the thermal energy travels through the metal containers. Complete these sentences. Thermal energy travels through the metal containers by the process of. The particles in the metal gain thermal energy and more. As energy passes through the metal the particles with each other. © UCLES 2023 3146_01 [Turn over 7 5 Mia investigates displacement reactions. In her first experiment she: puts some iron sulfate solution into a test-tube adds a piece of zinc to the iron sulfate solution records if a displacement reaction takes place. Mia repeats the experiment, but this time uses different metals. (a) Look at table showing Mia’s results from the first experiment. metal is there a displacement reaction? zinc yes magnesium copper iron Predict if a displacement reaction takes place with the other metals. Write your predictions in the table. (b) Complete the word equation for the reaction between zinc and iron sulfate solution. Look at the results. + + (c) Mia replaces the iron sulfate solution each time with a new sample. Explain why Mia does not use the same sample of iron sulfate solution each time. © UCLES 2023 3146_01 [Turn over 8 6 The diagram shows the pathway of water from the roots to a leaf in a flowering plant. absorption of water transport of water loss of water from through the roots up the stem the surface of the leaf (a) (i) Name the cells in the root that absorb water from the soil. (ii) Name the tube in the stem that transports water up the flowering plant. (iii) Name the process that causes the loss of water from the surface of the leaf. (b) Carlos investigates water loss from a plant shoot. Look at the equipment he uses. plant shoot layer of oil water conical flask balance At the start, Carlos measures the mass of the flask, its contents and the plant shoot. After 24 hours he measures the mass of the flask, its contents and the plant shoot. The change in mass is the mass of the water lost from the plant shoot. © UCLES 2023 3146_01 9 Here are his results. mass at start mass after 24 hours mass of water lost in g in g in g 820 811 (i) Calculate the mass of water lost by the plant shoot. Write your answer in the table. (ii) Oil is waterproof. Suggest why Carlos places a layer of oil on top of the water in the conical flask. (iii) Carlos wants to improve his experiment. He repeats his experiment using a different balance. Here are his results. mass at start mass after 24 hours mass of water lost in g in g in g 820.3 811.4 8.9 Carlos thinks these results are better. Explain why Carlos is correct. © UCLES 2023 3146_01 [Turn over 13 Here are their results. diameter mean diameter diameter of crater of ball of crater in mm in mm in mm 8 12 11 12 12 12 11.8 10 14 13 12 13 14 13.2 40 37 36 35 36 37 36.2 50 46 48 45 47 48 46.8 Oliver and Pierre are discussing their results. They think their results are reliable. Write down two reasons why they are correct. 1 2 © UCLES 2023 3146_01 [Turn over 3 2 Methane has a simple structure. Look at the model of a molecule of methane. H H C H H key electron from hydrogen electron from carbon (a) How many electrons are in a molecule of methane? (b) Write down the type of bonding in a molecule of methane. Explain your answer. type of bonding explanation (c) Methane has a simple structure. Predict one physical property of methane. © UCLES 2024 S/S9/01 [Turn over 4 3 Jamila spills some liquid on the back of her hand. After a short time, Jamila’s hand feels cold. Name the process that makes her hand feel cold. 4 Look at the diagram of part of the carbon cycle. carbon dioxide in the air A decomposition fossil fuels carbon carbon carbon compounds in B compounds compounds dead animals in animals in plants and plants (a) One of the arrows in the diagram shows photosynthesis. Write the letter P on the arrow that shows photosynthesis. (b) Name process A and process B. process A process B © UCLES 2024 S/S9/01 5 5 Lily reacts magnesium with copper sulfate solution. (a) Name this type of reaction. (b) Name the two products of this reaction. and (c) Lily adds zinc to magnesium sulfate solution. There is no reaction. Explain why there is no reaction. © UCLES 2024 S/S9/01 [Turn over 6 6 Fetal development is affected by the health of the mother. The table shows information about the mass of a fetus during pregnancy for a mother who smokes. age of the fetus mass of the fetus in weeks in kg 36 2.40 37 2.55 38 2.60 39 2.85 40 3.00 (a) Draw the graph of this information: label the x-axis label the y-axis plot all the points from the table. 3.00 2.90 2.80 ………………………………… 2.70 ………………………………… 2.60 2.50 2.40 2.30 35 36 37 38 39 40 ………………………………… ………………………………… © UCLES 2024 S/S9/01 7 (b) There is one anomalous result. Circle the anomalous result on the graph. (c) Draw a line of best fit on the graph. © UCLES 2024 S/S9/01 [Turn over 10 9 Water travels through plants. Look at the list of parts of a plant. A leaf xylem B stem xylem C stoma on the surface of leaf D root hair cell E root xylem Write down parts A to E in the correct order to show the pathway of water through a plant. One has been done for you. B 10 The table shows the melting points and boiling points of some Group 1 elements. melting point boiling point element in °C in °C lithium 181 1347 sodium 881 potassium 63 766 rubidium 39 688 (a) Describe the trend in the boiling point from the top to the bottom of Group 1. (b) Predict the melting point of sodium. °C © UCLES 2024 S/S9/01 17 16 This question is about the impact of climate change. Write down two impacts of climate change. 1 2 © UCLES 2024 S/S9/01 [Turn over 18 17 This question is about floating and sinking. (a) Look at the table of densities for different materials. density material in kg / m3 concrete 2400 iron 7000 plastic 920 water 1000 wood 600 Which materials from the table float in water? Explain your answer. materials explanation (b) An object sinks in water but floats in sea water. Predict a value for the density of sea water. Circle the correct answer. 100 kg / m3 900 kg / m3 1000 kg / m3 1030 kg / m3 © UCLES 2024 S/S9/01 19 (c) An object is put into a container full of water. The object floats and a volume of water comes out of the container. The water is collected in a 100 cm3 measuring cylinder. Look at the diagram of part of the measuring cylinder. cm3 50 40 30 What volume of water is collected? cm3 Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced annually and is available to download at https://lowersecondary.cambridgeinternational.org/ Cambridge Assessment International Education is part of Cambridge Assessment. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which is a department of the University of Cambridge. © UCLES 2024 S/S9/01 [Turn over The Periodic Table of Elements © UCLES 2024 Group 1 2 3 4 5 6 7 8 1 2 H He hydrogen helium Key 1 4 3 4 atomic number 5 6 7 8 9 10 Li Be atomic symbol B C N O F Ne lithium beryllium name boron carbon nitrogen oxygen fluorine neon 7 9 relative atomic mass 11 12 14 16 19 20 11 12 13 14 15 16 17 18 Na Mg Al Si P S Cl Ar sodium magnesium aluminium silicon phosphorus sulfur chlorine argon 23 24 27 28 31 32 35.5 40 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr potassium calcium scandium titanium vanadium chromium manganese iron cobalt nickel copper zinc gallium germanium arsenic selenium bromine krypton 39 40 45 48 51 52 55 56 59 59 64 65 70 73 75 79 80 84 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 20 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe S/S9/01 rubidium strontium yttrium zirconium niobium molybdenum technetium ruthenium rhodium palladium silver cadmium indium tin antimony tellurium iodine xenon 85 88 89 91 93 96 – 101 103 106 108 112 115 119 122 128 127 131 55 56 57–71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 lanthanoids Cs Ba Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn caesium barium hafnium tantalum tungsten rhenium osmium iridium platinum gold mercury thallium lead bismuth polonium astatine radon 133 137 178 181 184 186 190 192 195 197 201 204 207 209 – – – 87 88 89–103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 actinoids Fr Ra Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og francium radium rutherfordium dubnium seaborgium bohrium hassium meitnerium darmstadtium roentgenium copernicium nihonium flerovium moscovium livermorium tennessine oganesson – – – – – – – – – – – – – – – – – 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 lanthanoids La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu lanthanum cerium praseodymium neodymium promethium samarium europium gadolinium terbium dysprosium holmium erbium thulium ytterbium lutetium 139 140 141 144 – 150 152 157 159 163 165 167 169 173 175 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 actinoids Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr actinium thorium protactinium uranium neptunium plutonium americium curium berkelium californium einsteinium fermium mendelevium nobelium lawrencium – 232 231 238 – – – – – – – – – – –