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This document consists of 15 printed pages and 1 blank page. UCLES 2011 [Turn over For Examiner's Use 1 2 3 4 5 6 7 8 9 10 Total UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS Cambridge Checkpoint SCIENCE 1113/01 Paper 1 For Examination from 2012 SPECIMEN PAPER 45 minutes Candidates answer on the Question Paper. Additional Materials: Ruler 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. 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. 2 UCLES 2011 1113/01/SP/12 For Examiner's Use 1 The diagram shows a plant cell. chloroplast A B C (a) Name the parts labelled A , B and C . A B C [3] (b) Why are chloroplasts important to plants? [1] (c) Name two structures present in a plant cell that are not present in an animal cell. and [2] 3 UCLES 2011 1113/01/SP/12 [Turn over For Examiner's Use 2 The diagram shows a balloon containing air. air (a) Explain how the air particles exert a pressure on the inside of the balloon. [2] (b) The air in the balloon is heated by leaving the balloon in a sunny place. State two effects this has on the air particles. 1 2 [2] (c) State one way in which the balloon changes when it is left in a sunny place. [1] 4 UCLES 2011 1113/01/SP/12 For Examiner's Use 3 Maya investigates the reaction between calcium carbonate and hydrochloric acid. She adds dilute hydrochloric acid to some calcium carbonate (marble chips), at room temperature. She collects the gas given off in a gas syringe. dilute hydrochloric acid calcium carbonate syringe (a) Suggest one safety hazard in this experiment. How can Maya reduce the risk from this hazard? hazard how to reduce the risk [2] (b) Maya measures the volume of gas in the gas syringe every two minutes, until the reaction stops. The graph shows her results. 40 30 20 10 2 4 6 8 1 time / minutes volume of gas / cm 3 What is the total volume of gas given off in the reaction? ... View Full Document

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