# Cambridge International Examinations Cambridge Secondary 1 Checkpoint

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1 Cambridge International Examinations Cambridge Secondary 1 Checkpoint SCIENCE 1113/02 Paper 2 For Examination from 2014 SPECIMEN PAPER Candidates answer on the Question Paper. Additional Materials: Pen Calculator Pencil Ruler 45 minutes READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all questions. You should show all your working in the booklet. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question. The total number of marks for this paper is 50. This document consists of 16 printed pages. IB _02_SP/3RP UCLES 2014 [Turn over

2 1 (a) The boxes show some parts of plants and the function of the parts. Draw a line from each part to match its function. 2 part flower function photosynthesis leaf absorption of water root transport of water and minerals stem reproduction [3] (b) Complete the word equation for photosynthesis. carbon dioxide + glucose + [2] 2 Complete the table by deciding if the information indicates that the element is a metal or a non-metal. element magnetic state at room temperature Does it conduct electricity? metal or non-metal A no liquid yes B yes solid yes C no liquid no D no gas no E no solid yes [2] UCLES /02/SP/14

3 3 Complete each explanation using these words. 3 area force pressure (a) People who walk across snow may wear snowshoes. The person does not sink into the snow because the acts on a larger so that the is less. (b) A sharp knife cuts through cheese more easily than a blunt knife. The edge of the sharp knife has a smaller so the acting on the knife produces a larger. UCLES /02/SP/14 [Turn over

4 4 Plants and green algae need mineral salts to grow. One mineral salt is magnesium sulfate. 4 Ahmed and Safia investigate the growth of algae. They put different concentrations of magnesium sulfate solution into five flasks, A, B, C, D and E. They then add the algae. measure 10 cm 3 of algae using a syringe leave for 5 days A B C D E add 10 cm 3 of algae to each flask (a) Why did Ahmed and Safia put 10 cm 3 of algae into each flask? (b) Why did they leave the flasks for 5 days? UCLES /02/SP/14

5 5 (c) Here are their results. flask concentration of magnesium sulfate (1 = dilute, 5 = most concentrated) colour of algae (1 = light green, 10 = dark green) A 1 4 B 2 5 C 3 8 D 4 10 E 5 1 Complete the sentence to describe the pattern of their results. As the concentration of magnesium sulfate increases from 1 to 5, the colour of the algae [2] (d) When the colour of the algae is dark green it has grown the most. Complete the sentence. Choose a word from the list. carbon dioxide fastest the same slowest sugar water When the concentration of magnesium sulfate is 4 the algae grow. UCLES /02/SP/14 [Turn over

6 6 5 Look at the table. It shows the melting points and boiling points of some elements. element melting point in C boiling point in C gold iron mercury oxygen sodium Use the table to answer these questions. (a) Write down the name of the element that melts at 1538 C. (b) Which element is a liquid at room temperature (20 C)? (c) Which element is a non-metal? UCLES /02/SP/14

7 6 Here are some statements about the solar system. 7 A B C D E The Earth orbits the Sun. The Earth spins on its axis. The Moon orbits the Earth. The stars orbit the Sun. The Sun orbits the Earth. (a) Write down the letter of the statement that answers each of these questions. (i) Why does the Sun appear to move across the sky each day? (ii) Why do some stars appear in the summer night sky but not in the winter night sky? (iii) What did Copernicus and Galileo think was wrong? (b) Venus is not a source of light. Explain why it is possible to see Venus in the night sky. UCLES /02/SP/14 [Turn over

8 8 7 The diagram shows a palisade cell. nucleus chloroplast vacuole cell membrane cell wall cytoplasm (a) Which three structures, labelled in the diagram, are not found in animal cells? [3] (b) Name the part of the cell in which photosynthesis takes place. 8 The Earth is made up of three layers including the core and the crust. (a) What is the name of the other layer? (b) The core is made up of mainly two metals. One of these metals is nickel. What is the name of the other metal? UCLES /02/SP/14

9 (c) What is the approximate age of the Earth? Tick ( ) the correct box million years old 1200 million years old 2100 million years old 3200 million years old 4600 million years old 9 The diagram shows the energy flow into and out of a coal-fired power station. 70 MJ wasted in friction energy wasted 30 MJ wasted in heating wires 300 MJ electricity 1000 MJ in coal coal boiler, turbine and generator cooling tower transformer (a) How much useful electrical energy is provided by the power station? MJ (b) Calculate how much energy is wasted from the cooling tower? MJ UCLES /02/SP/14 [Turn over

10 10 10 Manjit puts a metal saucepan of milk on a cooker. metal saucepan hot milk hot-plate heat Thermal (heat) energy can be transferred by conduction, convection and radiation. (a) Which is the main process that transfers thermal energy through the milk? (b) Which is the main process that transfers thermal energy through the metal saucepan? UCLES /02/SP/14

11 11 11 The alimentary canal consists of many different organs. Look at the diagram of the alimentary canal. part A diaphragm small intestine large intestine (a) What is the name of part A? (b) The stomach is not labelled on the diagram. Draw a label line on the diagram to show the stomach. (c) Draw lines to match the organ with its function. organ large intestine small intestine function food is mixed up into a creamy liquid digests proteins, carbohydrates and fats and absorbs water, amino acids, sugars and fatty acids absorbs water stomach food is chewed into smaller pieces [2] UCLES /02/SP/14 [Turn over

12 12 12 Yuri does an experiment on sound. loudspeaker microphone oscilloscope Yuri connects a microphone to an oscilloscope. He places the microphone at different distances from the loudspeaker. He records the amplitude of the wave on the oscilloscope. Here are some of the results on the oscilloscope. distance 4 cm 6 cm 11 cm 25 cm (a) Use these pictures to complete the results table. distance in cm amplitude of wave in number of squares [2] UCLES /02/SP/14

13 13 (b) Which pattern best describes the results? Tick ( ) the correct answer. the amplitude does not change with distance the amplitude decreases with distance the amplitude increases with distance there is no pattern in the results 13 Hydrogen peroxide is used to make oxygen in the laboratory. Hydrogen peroxide breaks down to form water and oxygen. (a) This reaction is much faster when a chemical called manganese(iv) oxide is added to the hydrogen peroxide. The manganese(iv) oxide is unchanged at the end of the reaction. What type of chemical is manganese(iv) oxide? Tick ( ) the correct answer. acid alkali catalyst metal (b) Blessy investigates the effect of temperature on the breakdown of hydrogen peroxide. (i) Write down the variable she should change. (ii) Write down one variable she should control (keep the same). UCLES /02/SP/14 [Turn over

14 14 14 Some metal railings have started to rust. (a) Which metal were the railings made of? Circle the correct answer. aluminium copper iron lead (b) Which two substances must be present for the railings to rust? Circle the two correct answers. carbon dioxide hydrogen nitrogen oxygen water [2] (c) How can you prevent railings from rusting? UCLES /02/SP/14

15 15 15 This is a question about forces. Look at the diagrams. force force nut spanner A gravity pulling parachutist to Earth B force force chest expanders force force see-saw force C D E Which diagrams show a turning force? Choose from A, B, C, D and E. and [2] UCLES /02/SP/14 [Turn over

16 16 16 A car is driving along a road. Complete the sentences about the car. Use words from the list air resistance chemical elastic friction gravity kinetic The car is slowing down. The forces that slow the car down are and. [2] 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. Cambridge International Examinations is part of the Cambridge Assessment Group. Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of Cambridge UCLES /02/SP/14

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