lOMoARcPSD|17599381 Cambridge Primary Checkpoint - Science (0846) April 2021 Paper 2 Question Political Studies (The International School @ ParkCity) Studocu is not sponsored or endorsed by any college or university Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 Cambridge Primary Checkpoint SCIENCE 0846/02 Paper 2 April 2021 45 minutes You must answer on the question paper. No additional materials are needed. INSTRUCTIONS • Answer all questions. • Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs. • Write your name, centre number and candidate number in the boxes at the top of the page. • Write your answer to each question in the space provided. • Do not use an erasable pen or correction fluid. • Do not write on any bar codes. • You should show all your working in the booklet. • You may use a calculator. INFORMATION • The total mark for this paper is 50. • The number of marks for each question or part question is shown in brackets [ ]. This document has 20 pages. Any blank pages are indicated. IB21 05_0846_02/7RP © UCLES 2021 [Turn over Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 2 1 The picture shows a bird gliding in the sky. force A force B Complete these sentences. (a) Force A slows the bird down. Force A is called [1] (b) Force B pulls the bird towards the Earth. Force B is called [1] (c) Force is measured in [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 3 2 People need to care for the environment. Look at the sign. PLEASE DO NOT ........................... (a) There is a word missing on the sign. Write down the missing word in the box on the sign. [1] (b) Write down two other ways people care for the environment. 1 2 [2] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 4 3 Blessy has a mixture of glass beads, salt, sand and steel powder. The glass beads are much bigger than the particles of sand and steel. She separates this mixture to get glass beads, salt solution, sand and steel. Look at the flow chart describing how she separates the mixture. mixture of glass beads, salt, sand and steel powder stage A mixture of salt, sand and steel powder glass beads stage B mixture of salt and sand steel powder stage C sand salt solution (a) What is the name of the process used in stage A? [1] (b) Describe what Blessy does in stage B. [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 5 4 Look at the information about the melting point and boiling point of some substances. substance melting point in °C A 10 100 B 1050 2400 C 950 2100 D 0 105 E 55 210 F 10 210 boiling point in °C (a) Which substance has the same boiling point as water? Choose from the table. [1] (b) Which substance has the same melting point as water? Choose from the table. [1] (c) What is the freezing point of substance E? [1] °C (d) The temperature in a classroom is 25 °C. The substances in the table are stored in the classroom. Which three substances are liquids in the classroom? [2] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 6 5 Flowering plants have a life cycle. (a) The pictures show different stages in the life cycle of an apple plant. They are not in the correct order. letter picture A fruit B seeds flower C seedling D Not drawn to scale E tree Write the letters in the correct order to show the stages of the life cycle of the apple plant. One has been done for you. D [2] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 7 (b) Look at the seeds of the apple plant. seeds Describe how the apple seeds are dispersed. [2] 6 The pictures show electrical circuit symbols. Draw a line to match each symbol with the correct name. symbol name battery buzzer cell lamp switch [2] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 8 7 This question is about materials. (a) A compass contains a magnetic material. Complete the sentence. The name of one magnetic material is . [1] (b) Complete these sentences about the uses and properties of materials. Glass is used to make windows. We use glass because . Wool is used to make clothes. We use wool because . Plastic is used to make food containers. We use plastic because . Concrete is used to make bridges over roads. We use concrete because . [4] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 9 8 Rajiv makes a musical instrument using drinking straws. drinking straws card (a) Describe how Rajiv uses the drinking straws to make a sound. [1] (b) Describe how Rajiv makes the sound louder. [1] (c) Complete the sentence. As the length of the drinking straw decreases, the pitch . [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 10 9 Mia and Lily investigate how lungs work. Look at the equipment they use. Mia plastic bottle tube tank of water This is the method they use: • Lily measures the amount of water in the plastic bottle • Mia breathes out down the tube • the air that Mia breathes out removes some of the water in the bottle • Lily measures the new amount of water in the plastic bottle • they repeat the method with their friends. (a) Lily measures the amount of water in litres. What amount is Lily measuring? Circle the correct answer. force length mass time volume [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 11 (b) Here are their results. name amount of water at start in litres amount of water at end in litres amount of water removed in litres Mia 5.0 2.0 3.0 Lily 5.0 3.5 1.5 Priya 5.0 2.5 2.5 Blessy 5.0 2.0 3.0 Aiko 5.0 1.5 What amount of water does Aiko remove from the plastic bottle? litres [1] (c) Complete the bar chart to show their results for the amount of water removed. Include the label for the y-axis. 4 3 ................................ ................................ 2 ................................ 1 0 Mia Lily Priya Blessy Aiko [3] (d) Lily says, ‘The amount of water removed = the amount of air breathed out.’ Who breathed out the least amount of air? [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 12 10 The table shows some information about different planets in the Solar System. A distance from the Sun in million km 57.9 B 149.6 1.0 1.0 C 108.2 243.0 0.6 D 778.4 0.4 11.9 E 227.9 1.0 1.9 planet time to spin on axis in Earth days 58.6 time to orbit the Sun in Earth years 0.2 (a) Which planet is the nearest to the Sun? Circle the correct answer. A B C D E [1] (b) Which planet takes the most time to move around the Sun? Circle the correct answer. A B C D E [1] (c) Describe the relationship between the distance from the Sun and the time to orbit the Sun. [1] (d) Which planet is Earth? Explain your answer. [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 13 11 Oliver finds this information on the internet. animal number of bones in the body cat 230 dog 320 elephant 326 horse 205 snake 1800 (a) Put the animals in the correct order from most to least number of bones. most number of bones least number of bones [1] (b) The skeleton of a human has 206 bones. How many more bones are there in the skeleton of a cat compared to a human? more bones [1] (c) Write down two reasons why animals have a skeleton. 1 2 [2] (d) The snake Oliver found on the internet is 7 m long. Some snakes only have 600 bones. Why do some snakes have fewer bones? [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 14 12 Jamila and Carlos heat a substance. They measure the temperature of the substance every minute. Before they start the investigation, Jamila makes this prediction: ‘The longer the substance is heated the higher the temperature of the substance.’ Look at their results table. time in minutes temperature in °C 0 25 1 29 2 33 3 37 4 41 5 45 6 49 7 49 8 49 9 52 10 57 (a) Complete the sentence to describe the pattern in the results. As the time increases [2] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 15 (b) Do the results support Jamila’s prediction? Explain your answer. [1] (c) Carlos decides to present their results in another way. Circle the best way to present the results. bar chart histogram line graph pie chart [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) [Turn over lOMoARcPSD|17599381 16 13 Priya and Chen investigate shadows. The picture shows the equipment they use. post large sheet of white paper shadow Priya and Chen: • place a large sheet of white paper on the ground • put a post at one end of the paper • measure the length of the shadow at different times of the day. (a) The post makes a shadow. Why does the post make a shadow? Tick () the correct box. the post is heavy the post is opaque the post is tall the post is transparent [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 17 (b) Here are their results. time of day length of shadow in cm 10:30 144 11:00 129 11:30 114 12:00 105 12:30 111 13:00 13:30 126 What is the difference in the length of the shadow between 10:30 to 11:00? cm [1] (c) What time of day did they observe the shortest length of shadow? [1] (d) Priya and Chen did not record a length for 13:00. Predict the length of the shadow at 13:00. [1] © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 18 BLANK PAGE © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 19 BLANK PAGE © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com) lOMoARcPSD|17599381 20 BLANK PAGE 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 for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Cambridge Assessment International Education is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of the University of Cambridge Local Examinations Syndicate (UCLES), which itself is a department of the University of Cambridge. © UCLES 2021 0846/02/A/M/21 Downloaded by Sophie Ying (tanjoymelodyin@gmail.com)
