Download [PDF] April 2021 CAIE P2 Questions 1113 Science Cambridge Lower Secondary Checkpoint

File Information

Filename:	[PDF] April 2021 CAIE P2 Questions 1113 Science Cambridge Lower Secondary Checkpoint.pdf
Filesize:	1.51 MB
Uploaded:	22/09/2022 12:23:59
Keywords:	april 2021 caie p2 questions 1113 science cambridge lower secondary checkpoint pdf
Description:	Download file or read online CAIE Cambridge lower secondary checkpoint past exam paper Science 1113/02/A/M/21 April/May 2021 questions paper 2 - Cambridge Assessment International Education.
Downloads:	402

File Preview

Download Urls

Short Page Link

https://www.edufilestorage.com/6tl

Full Page Link

https://www.edufilestorage.com/6tl/PDF_April_2021_CAIE_P2_Questions_1113_Science_Cambridge_Lower_Secondary_Checkpoint.pdf

HTML Code

<a href="https://www.edufilestorage.com/6tl/PDF_April_2021_CAIE_P2_Questions_1113_Science_Cambridge_Lower_Secondary_Checkpoint.pdf" target="_blank" title="Download from eduFileStorage.com"><img src="https://www.edufilestorage.com/cache/plugins/filepreviewer/4883/pdf/150x190_middle_46f4e7862b1eb5bd4935adbbba5d79e8.jpg"/></a>

Forum Code

[url=https://www.edufilestorage.com/6tl/PDF_April_2021_CAIE_P2_Questions_1113_Science_Cambridge_Lower_Secondary_Checkpoint.pdf][img]https://www.edufilestorage.com/cache/plugins/filepreviewer/4883/pdf/150x190_middle_46f4e7862b1eb5bd4935adbbba5d79e8.jpg[/img][/url]

[PDF] April 2021 CAIE P2 Questions 1113 Science Cambridge Lower Secondary Checkpoint.pdf | Plain Text

This document has 16 pages. IB21 05_1113_02/7RP © UCLES 2021 [Turn ove r  Cambridge Lower Secondary Checkpoint SCIENCE 1113/02 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 [ ].

2 © UCLES 2021 1113/02/A/M/21 1 Yuri draws a picture of a fungus living near some trees. After three days he draws another picture of the same fungus. Look at these two pictures. day 1 day 4 (a) The pictures show evidence that this fungus is a living organism. What is this evidence? [1] (b ) Yuri’s teacher says that there are more characteristics of living organisms. Write down three other characteristics of living organisms. 1 2 3 [3]

3 © UCLES 2021 1113/02/A/M/21 [Turn over 2 These varieties of cat belong to the same species. Siamese catManx cat (a) Complete this definition of a species. Animals that belong to the same species are able to together to produce offspring. [2] (b) Siamese cats and Manx cats show variation within a species. Describe two differences, shown in the diagram, between Siamese cats and Manx cats. 1 2 [2]

4 © UCLES 2021 1113/02/A/M/21 3 This question is about different types of chemical reaction. (a) Complete the sentences. Choose from the list. combustion displacement neutralisation respiration rusting (i) Burning a fuel in air is called . [1] (ii) The reaction between an acid and an alkali is called . [1] (b) Complete the word equation for the reaction between calcium carbonate and hydrochloric acid. calcium carbonate + hydrochloric acid calcium chloride + + [2]

5 © UCLES 2021 1113/02/A/M/21 [Turn over 4 Look at the diagram. It shows white light being split into different colours. white light Complete the sentences. Choose from the list. dispersion eight filter mirror prism reflection refraction screen seven six spectrum When white light enters a it is split into different colours. This process is known as . The different colours are known as the colours of the . [4]

6 © UCLES 2021 1113/02/A/M/21 5 This question is about elements, compounds and mixtures. (a) Look at the boxes. They show the particles in some substances. ABCD Which box shows a mixture of two elements? Circle the correct answer. A B C D [1] (b) A compound is made of only sodium and chlorine. What is the name of this compound? [1]

7 © UCLES 2021 1113/02/A/M/21 [Turn over 6 Mia measures the current in different electrical circuits. (a) Write down the name of the piece of equipment used to measure current. [1] (b) Mia connects an electrical circuit with one cell and two lamps. A1 A2 A3 0.125 A The reading on A 1 is 0.125 A. Write down the two missing readings. The reading on A 2 is A. The reading on A 3 is A. [1] (c) Mia connects three more circuits using the same size cells and lamps. A4 A5 0.25 A A6 The reading on A 4 is 0.25 A. Write down the two missing readings. The reading on A 5 is A. The reading on A 6 is A. [2]

8 © UCLES 2021 1113/02/A/M/21 7 Chen measures the pulse rate of his friends before and after exercise. All the friends do the same amount and level of exercise. Here are his results. friend pulse rate before exercise in beats per minute pulse rate after exercise in beats per minute change in pulse rate in beats per minute Carlos 74 104 Mike 72 105 Oliver 69 98 (a) Calculate the change in pulse rate for each friend. Write your answers in the table. [1] (b) Are Chen's results reliable? Yes No Explain your answer. [1] (c) Chen makes this statement. ‘Mike is the fittest boy in my school.’ Write down two reasons why Chen's statement is not correct. 1 2 [2]

9 © UCLES 2021 1113/02/A/M/21 [Turn over 8 Look at the diagram. It shows solutions being mixed in a plastic cup. mixture of solutionsplastic cup lid thermometer Look at the table. It shows the results of five experiments. experiment temperature before mixing solutions in °C temperature after mixing solutions in °C A 15 26 B 15 10 C 15 15 D 15 32 E 15 27 (a) (i) Which experiment transfers the most thermal (heat) energy into the solutions? [1] (ii) Complete the sentence. The reaction in experiment is endothermic because . [1] (b) Suggest a reason for the result in experiment C. [1]

10 © UCLES 2021 1113/02/A/M/21 9 Priya measures the distance a swimmer moves every five seconds. She investigates two different swimming styles. She writes her results in a table. time in s distance in m butterfly style backstroke style 0.0 0.0 0.0 5.0 8.5 9.0 10.0 16.5 18.0 15.0 25.0 34.5 20.0 33.0 35.0 25.0 42.0 46.0 (a) One of the results is anomalous. Circle the anomalous result in the table. [1]

11 © UCLES 2021 1113/02/A/M/21 [Turn over (b) (i) Complete the distance/time graph for the butterfly style: • label the x-axis and y-axis • plot the other three points • draw a line of best fit. 0 0 5.010.0 15.0 20.0 25.0 10.0 20.0 30.0 .........................................40.0 50.0 ......................................... [3] (ii) Predict the distance the swimmer moved in the first 12 seconds. m [1]

12 © UCLES 2021 1113/02/A/M/21 10 The diagram shows the heart of a human. The darker grey shading shows oxygenated blood. A B C D heart Use the information in the diagram to match each letter with the correct description of the blood vessel. letter description of the blood vessel A artery taking deoxygenated blood to the lungs B artery taking oxygenated blood to the body C vein taking deoxygenated blood to the heart D vein taking oxygenated blood to the heart [3]

13 © UCLES 2021 1113/02/A/M/21 [Turn over 11 Look at the chemical symbols for four metals. Cu Zn Na Ca Answer the questions. Each chemical symbol can be used once, more than once or not at all. (a) Which of the four metals is the most reactive? [1] (b) Which of the four metals does not react with water or dilute hydrochloric acid? [1] (c) Which of the four metals reacts slowly with dilute hydrochloric acid? [1] (d) Which of the four metals is lowest in the reactivity series? [1]

14 © UCLES 2021 1113/02/A/M/21 12 Safia draws two pie charts to show the energy resource use in her country. oil natural gas coal nuclear Year 2018 Year 2040 renewables The pie chart for the year 2040 shows the predicted energy resource use. The predicted natural gas use decreases from 2018 to 2040. The predicted renewables use increases from 2018 to 2040. (a) Describe two other changes in predicted energy resource use from 2018 to 2040. 1 2 [2] (b) (i) Name one renewable energy resource. [1] (ii) Suggest why the renewable energy resource use is predicted to increase from 2018 to 2040. [1]

15 © UCLES 2021 1113/02/A/M/21 [Turn over 13 Angelique investigates how quickly plants absorb water. She uses the stem and leaves of a plant called celery. She puts a stem of celery in a jar of coloured water. After one hour she looks at the celery to see how much coloured water it has absorbed. This is shown in the diagram. leaves celery stem coloured waterjar coloured water absorbed at startafter one hour (a) Suggest how Angelique measures the amount of coloured water the celery has absorbed. [1] (b) Angelique also investigates the effect of temperature on the absorption of water. State two variables that Angelique controls in this investigation. 1 2 [2]

16 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 1113/02/A/M/21 All potassium and sodium salts are soluble in water. Most sulfates are soluble in water (except barium, calcium and lead). Most chlorides are soluble in water (except lead and silver).All nitrates are soluble in water. 14 Carlos researches the solubility of different salts. He finds this information on the internet. Use the information to answer these questions. (a) Write down the name of one insoluble sulfate. [1] (b) Look at the chemical formula of a salt. KCl Is the salt soluble? Yes No Explain your answer. [1]