SGSS 2022 1Exp. EOY

[Turn Over SERANGOON GARDEN SECONDARY SCHOOL END-OF-YEAR EXAMINATION 2022 CANDIDATE NAME CLASS INDEX NUMBER LOWER SECONDARY SCIENCE 10 Oct 2022 Secondary 1 Express 2 hours 0820 - 1020 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, class register number and class on in the spaces at the top of this page You may use an HB pencil for any diagrams, graphs, tables or rough working. Write in dark blue or black pen. 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 A [30 marks] There are thirty questions in this section. Answer all questions. For each question, there are four possible answers A, B, C and D. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Choose the answer you consider correct and shade your answer in the Optical Answer Sheet (OTAS). Section B [30 marks] Answer all questions. Write your answers in the spaces provided on the question paper. Section C [40 marks] Answer any four questions. Write your answers in the spaces provided on the question paper. A copy of the Periodic Table is provided on page 26. The number of marks is given in brackets [ ] at the end of each question or part question. For Examiner’s Use A 30 B 30 C 40 Total 100 This question paper consists of 26 printed pages and 0 blank page.

2 SGS/2022/EOY/1E/LSS Section A (30 marks) 1 Which of the following S.I. units is incorrectly matched to its physical quantity? physical quantity S.I. unit A time hour (h) B length metre (m) C volume cubic metre (m3) D mass kilogram (kg) 2 Marie Curie is the first female Nobel Prize winner for her work on radioactivity. Before her success, Marie Curie was unable to attend university in Poland. However, she did not give up on learning. She worked and eventually saved enough money to pursue higher education in France. What attitude is illustrated here? A Integrity B Objectivity C Open-mindedness D Perseverance 3 A chemical in the laboratory is known to be toxic and corrosive. Which hazard symbols should be labelled on the bottle containing this chemical? I II III IV A I and III B I and IV C II and III D III and IV 4 Which of the following group of substances are good conductors of heat? A copper, magnesium, calcium B carbon, calcium, fluorine C nitrogen, phosphorus, chlorine D sulfur, bromine, copper

3 SGS/2022/EOY/1E/LSS [Turn over 5 The following informatio