Sec 1 2024 JWSS Science EOY

Class Index NumberName: Setter: Mdm Juliana and Mr Chong WL Page 1of 31 Jurong West Secondary SchoolEnd-of-Year Examinations 2024 100Additional material: Multiple Choice Answer Sheet.READ THESE INSTRUCTIONS FIRSTWrite your name, class and index number on all the work you hand in.Write in dark blue or black pen.You may use an HB pencil for any diagrams, graphs, tables or rough working.Do not use staples, paper clips, glue or correction fluid.The use of an approved scientific calculator is expected, where appropriate.You may lose marks if you do not show your working or if you do not use appropriate units.Section AThere are thirty questions. Answer allquestions. For each question there are four possible answers A,B,CandD. Choose the oneyou consider correct and record your choice in the multiple choice answer sheet provided.Read the instructions on the Answer Sheet very carefully.Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this question paper.Section BAnswer allquestions in the spaces provided. The number of marks is given in brackets [ ] at the end of each question or part question.Section CAnswer onequestion in this section in the spaces provided. A copy of the Periodic Table is printed on page 31. There are a total of 31printed pages (including the cover page) LOWER SECONDARY SCIENCE Secondary One G3 (EXP)Wednesday25 September 20240800 - 09451 hour 45 minutes After checking of answer scriptChecked bySignatureDateStudentwww.KiasuExamPaper.com 86

JWSS End-of-Year Examinations 2024 Lower Secondary Science Secondary 1G3 Page 2of 31 Section A: Multiple Choice (30 marks)Answer allquestions.For each question there are four possible answers A,B,Cand D. Choose the one you consider correct and record your choice in the multiple choice answer sheet.A1Thomas observed that in the month of November and December, the number of days it rained were 19 and 17 days per month respectively. He hypothesised that Novemberwas the month where it rained the most in a year. Thomas then recorded the number of rainy days in a month until the next November. Why did Thomas record the number of rainy days in a month until the next November? AHe wanted to ask a question.BHe wanted to draw a conclusion.CHe wanted to explain the high rainfall in August.DHe wanted to form a hypothesis.A2Concentrated sulfuric acid is a corrosive substance. Which hazard symbol should be labelled on a container of concentrated sulfuric acid? A B C DA3Which is notan SI unit? AgBKCm3Ds www.KiasuExamPaper.com 87

JWSS End-of-Year Examinations 2024 Lower Secondary Science Secondary 1G3 Page 3of 31 A4The boiling point of liquid Pis lower than that of water.The student places a thermometer in boiling liquid P.The diagram below shows part of the stem of this thermometer without numbers. What is the boiling point of liquid P? A85.5°CB94.5 °CC100.0 °CD105.5 °Cmercury www.KiasuExamP