Science Syllabus Lower Secondary Special/Express/Normal (Academic) & Normal (Technical)
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Science Syllabus Lower Secondary Special/Express/Normal (Academic) & Normal (Technical)
Curriculum Planning & Development Division Ministry of Education Science Syllabus Lower Secondary Special/Express/Normal (Academic) 2001
Science Syllabus Lower Secondary Special/Express/Normal (Academic) © Copyright 2004 Curriculum Planning & Development Division. This publication is not for sale. All rights reserved. No part of this publication may be reproduced without the prior permission of the Ministry of Education, Singapore. Year of implementation: from 2005
CONTENTS 1 OVERVIEW • Philosophy and Aims 1 • Syllabus Framework 2 • Themes and Topics 3 • Scientific Inquiry and Processes 6 2 EVALUATION 9 • Assessment Objectives 10 • Modes of Assessment 11 • Guidelines for Assessment 11 3 SYLLABUS CONTENT 15 4 GLOSSARY OF TERMS 48 5 ACKNOWLEDGEMENTS 49
Lower Secondary Syllabus S/E/N(A) technology and thinking into the teaching and learning of Preamble science are included alongside the learning outcomes. This Lower Secondary Science Syllabus is essentially a Teachers are advised not to follow the syllabus too rigidly but continuation and further development of the Primary Science to exercise their professional judgement in implementing it. Syllabus. It is also a bridge to, and a foundation for, pursuit Schemes of work should be developed with the interests and of scientific studies at higher levels. The syllabus has also abilities of the students uppermost in mind. Teachers are taken into consideration the desired outcomes of education encouraged to use a variety of approaches in their teaching for our lower secondary students as well as the national and to incorporate ideas and materials from various sources, education emphasis. in order to enhance the learning of science. This syllabus emphasises the need for a balance between the Certain parts of the syllabus have been underlined. The acquisition of science knowledge and process and thinking topics concerned are optional for the Normal (Academic) skills. In addition, as and where the topics lend themselves, course students. the technological applications, social implications and the Asterisks (*) placed alongside learning outcomes indicate value aspects of science are also considered. It also areas of the syllabus where it is anticipated that teachers emphasises the broad coverage of fundamental concepts in might use applications of Information Technology, as the physical, biological and environmental sciences. appropriate. It should be appreciated that the list is not A thematic approach incorporating elements of a cross- exhaustive. curricular nature is adopted in organising the content of this The “Remarks” column contains teaching strategies. They syllabus using the Science as an Inquiry framework. A brief also include statements that help teachers focus on the key description of each theme is given. It is hoped that teachers learning points for the respective learning outcomes. would emphasise the underlying organising principle of the various themes in their teaching. The content of the syllabus has been carefully selected to ensure continuity and progression across the primary and secondary levels. The aims spelt out in the syllabus provide the guiding principles for the suggested teaching approaches and evaluation methods. A list of process skills, thinking skills and processes for teaching is also provided. In addition, information and suggestions on infusing information 1 Overview 1
Lower Secondary Syllabus S/E/N(A) 1.1 PHILOSOPHY AND AIMS i) enable students to acquire understanding and knowledge so as: The goal of science education was once thought to be • to become confident citizens in a solely to prepare a person for a career in science or technological world, able to take or engineering. Hence, great emphasis was given to the develop an interest in matters relating to acquisition of scientific knowledge and understanding. science and technology; However, the ever-expanding scientific knowledge • to recognise and appreciate the makes it impossible for the student to acquire all of it, usefulness and limitations of the scientific while the ability to access, generate and process method to investigating and solving information becomes more important. The aims of the problems; syllabus now include the acquisition of knowledge and • to be prepared for science studies at understanding as well the acquisition of lifelong skills, upper secondary level and beyond. from discrete process skills, thinking skills to processes such as decision-making and problem ii) develop abilities and skills that solving. • are relevant to the study and practice of science; The rapid advances in science and technology require ordinary people to acquire basic scientific and • are useful in everyday life; technological literacy so as to enable them to • encourage effective communication; understand and make informed decisions on matters • encourage safety consciousness and relating to science and technology in everyday life. safe practice. Also, the realisation that scientific and technological iii) develop attributes relevant to the study and/or developments are now shaping people’s lives makes it practice of science such as: necessary that science education should inculcate • concern for accuracy, positive attitudes towards self and society. • objectivity, Thus, the Lower Secondary Science Syllabus is aimed • inquisitiveness, at preparing students for further studies at upper • initiative, secondary level as well as developing them into • innovativeness, scientifically informed and responsible adults. • integrity, • perseverance, The aims are to: • critical analysis. 2
Lower Secondary Syllabus S/E/N(A) iv) stimulate topics in the Physical and Life Sciences are organised • curiosity, interest and enjoyment in into 6 main themes. They are Diversity, Cycles, science and its methods of inquiry; Energy, Interactions, Models and Systems, and • interest in, and care for, the environment. Measurement. The first four themes are similar to those found in Primary Science. The theme Models v) promote an awareness: and Systems is an extension of a similar theme • that the study and practice of science are Systems in Primary Science. The theme co-operative and cumulative activities Measurement is introduced only at the lower and are subject to social, economic, secondary level. The concepts introduced in Primary technological, ethical and cultural Science under the similar themes are revisited and influences and limitations; consolidated in Lower Secondary Science for further • that the applications of science are development in terms of knowledge, skills and generally beneficial; but the abuse of processes. scientific knowledge can be detrimental; • of the importance of the use of IT for The Lower Secondary Science Syllabus uses the communications and as a tool for data Science as an Inquiry framework to weave the skills, collection and analysis. processes and attitudes in science throughout the 6 themes. In addition, the applications and impact of 1.2 SYLLABUS FRAMEWORK science and technology are included wherever appropriate. The Lower Secondary Science Syllabus is essentially Science as an Inquiry a continuation of the Primary Science Syllabus where The Science as an Inquiry framework should not be a the scientific base is developed further and in greater separate component from the other 6 themes. It depth. It is also a bridge to, and a foundation for, the provides for the development of skills and hands-on pursuit of scientific studies at higher levels. It is based activities that are the essence of doing science. on a spiral curriculum where concepts introduced at Students use concepts and integrate process skills the primary level are treated in increasing depth at the acquired to inquire further into the many phenomena lower secondary level, and then at the upper learnt. Teachers should integrate the Science as an secondary level. Inquiry framework into the instruction of the content of The Lower Secondary Science Syllabus is structured all the 6 themes. in a similar way to the Primary Science Syllabus. The 3
Lower Secondary Syllabus S/E/N(A) mathematical. Examples of models in this syllabus are THEMES AND TOPICS the atomic model and particulate model of matter. Diversity Students should recognise that a system is a whole Students should appreciate that there is a great variety consisting of parts that work together to perform a of living and non-living things in the world. Man seeks function. There are systems in nature as well as man- to organise this great variety to better understand the made systems. Parts of a system influence one world in which he lives. There are common threads another. Two or more systems can interact with one that connect all living things and unifying factors in the another to perform a function. Examples of systems in diversity of non-living things that help him to classify nature are the digestive systems and reproductive them. It is important to develop the ability to classify systems. and organise living and non-living things. The study of living and non-living things in terms of properties and Interactions changes is greatly facilitated by putting them into Students should appreciate that a study of the groups. Classes of matter such as elements, interactions between and within systems helps Man to compounds and mixtures, solutions and suspensions better understand his environment. There are are introduced. interactions between the living world and the environment at various levels; i.e. interactions which Cycles occur within an organism, between organisms as well Students should recognise that there are repeated as between organisms and the environment. There patterns of changes in nature and understand how are also interactions between forces and objects, and these patterns arise. Examples of these cycles are the energy and matter. In addition, the effects of harmful nutrient cycles in the ecosystems. Studying these substances such as drugs and alcohol on the human cycles helps Man to predict events and processes and body would be discussed. to understand the Earth as a self-sustaining system. Energy Models and Systems Students should appreciate that energy is necessary Students should appreciate that models are simplified for all living and non-living systems. There are many representations of phenomena. These models are forms of energy and one form can be converted to constructed to facilitate understanding of the another. Man uses energy in many ways. Living phenomena. There are three types of models in the things obtain energy and use it to carry out life learning of science, namely, physical, conceptual and 4
Lower Secondary Syllabus S/E/N(A) processes. Energy makes changes and movement recapitulate the underlying organising principles of possible in everyday life. these themes and also the concepts taught at Sec 1 when they reintroduce these themes again at Sec 2. Measurement Students should recognise the need for Man to quantify his interactions with the environment. Man makes estimations and also accurate measurements of quantities not just when he is engaged in scientific inquiry but also in everyday activities. Direct measurements of quantities include length, mass, volume and time and calculated quantities include density, speed and rate. The study of measurement would enable Man to plan the use of resources efficiently. Table 1 gives the overview of the topics by levels. The topics are distributed in such a way that there is a balance between physical and life sciences. In this thematic approach of organising the topics, it is hoped that teachers would stress the underlying organising principles when teaching the content. As shown in Table 1, the themes covered in Sec 1 are Measurement, Diversity, Models and Systems, Interactions and Energy. In Sec 2, the themes covered are Cycles, Models and Systems Interactions,, and Energy. The themes Models and Systems, Interactions and Energy are covered in both levels. It is important for teachers to review and 5
Lower Secondary Syllabus S/E/N(A) Table 1 : Overview of Topics by levels Science as an Measurement Diversity Models and Interactions Energy Inquiry • Use of • Classification of Systems • Force and its • Sources of • Science and measuring matter • Cells- structure, related concepts energy and technology instruments • Classification of function & • Effects of heat storage of • Attitudes • Physical plant and organisation • Transmission of energy Sec 1 • Science quantities & animal life heat • Photosynthesis process skills units • Elements, and respiration (To be integrated compounds & into the teaching mixtures of the content in • Solutions & the various suspensions themes) Science as an Cycles Models and Interactions Energy Inquiry • Nutrient Systems • Chemical • Light • Science and cycles in the • Particulate changes • Electricity technology ecosystems model of matter • Sound • Attitudes • Simple concepts • Simple concepts Sec 2 • Science of atoms and of populations, process skills molecules community and (To be integrated • Transport in ecosystem into the teaching living organisms • Energy transfer of the content in • Digestion in process in the the various animals ecosystem themes) • Sexual • Abuses to life reproduction in processes human beings The Lower Secondary Science Syllabus, as in the 1.3 SCIENTIFIC INQUIRY AND PROCESSES Primary Science Syllabus, promotes inquiry whereby 6
Lower Secondary Syllabus S/E/N(A) students use concepts and integrate the process and ♦ Comparing thinking skills acquired to inquire further into the This is the skill of identifying the similarities and phenomena in the environment. Scientific Inquiry differences between or among objects or entities. involves science process and thinking skills as well as general inquiry processes such as problem-solving, ♦ Communicating [C3] logical reasoning, decision-making and clarification of This is the skill of transmitting and receiving information values. Science process skills are those employed by presented in various forms - verbal, tabular, graphical or scientists to make sense of the natural world. pictorial ♦ Inferring: Induction [C3] SKILLS This is the skill of explaining observations or data or information gathered. Generalisations are then drawn ♦ Using apparatus and equipment [C1] based on the patterns or relations in these areas. This is the skill of knowing the functions and limitations of various equipment and apparatus, and being able to ♦ Inferring: Deduction [C3] select and handle them appropriately for various tasks. This is also the skill of explaining observations or data or information gathered. This process uses reasoning ♦ Formulating questions [C4] based on principles and generalisations in order to This is the skill involving the clarification of issues and derive unstated specific consequences. meaning through inquiry. Good questions focus attention on important information and are designed to generate ♦ Formulating hypothesis [C4] new information. This is the skill of making a general explanation for a . related set of observations or events. It is an extension ♦ Observing [C2] of inferring. This is the skill of using our senses to gather qualitative as well as quantitative information about a particular object, ♦ Predicting [C4] event or phenomenon. This also includes the use of This is the skill of assessing the likelihood of an outcome instruments to extend the range of our senses. based on prior knowledge of how things usually turn out. ♦ Analysing [C4] ♦ Classifying This is the skill of clarifying information by examining This is the skill of grouping objects or events according parts and relationships contained in the information. to common attributes or properties. ♦ Elaborating 7
Lower Secondary Syllabus S/E/N(A) This is the skill of providing details, examples and other PROCESSES relevant information so as to make one’s ideas more comprehensible to others. ♦ Planning investigation [C4] This process involves formulating questions or ♦ Establishing criteria hypotheses for investigating, and devising ways to find This is the skill of setting standards for judging the answers. It also involves deciding on the type of usefulness or logic of ideas. These criteria are often equipment required and measurements to be made, as derived from culture, experience, and instruction and well as identifying the variables involved and offered as reasons for making a favourable judgement. manipulating the variables so that the effect of only one variable can be observed in any one experiment. ♦ Verifying This is the skill of confirming or proving the truth of ♦ Decision-making information, using specific standards or criteria of This is the process of generating and applying criteria to evaluation. select from among seemingly equal alternatives. Engaging students in decision-making tasks not only ♦ Generating possibilities teaches them a useful process but enhances their This is the skill of focusing attention on exploring all the learning by requiring that they understand content well alternatives, possibilities and choices beyond the enough to use it. obvious or preferred one. ♦ Creative problem solving ♦ Abstracting This is the process of thinking through a problem and This is the skill of selecting the disparate facts or choosing a creative solution that meets the information and translating these to a general pattern of requirements. This thinking process is used whenever information. It allows an individual to see how two one faces obstacles and wishes to overcome them so as seemingly unrelated things are really connected on a to arrive at a practical and workable solution. level beyond the literal. ♦ Defining the problem It must be pointed out that there is as yet no consensus This is the skill of consciously clarifying situations that of opinion among science educators on the number of are puzzling in some way. The extent, scope and nature and categorisation of science process skills and thinking of the problem are identified and clarified. skills. There is also no one definite sequence of priority among the science process skills and thinking skills 8
Lower Secondary Syllabus S/E/N(A) listed above. For example, observation may lead to intelligent guess is made. This is then tested again hypothesising but at other times a hypothesis can lead by experiment until a valid hypothesis is established. to an observation. All the process skills and thinking skills listed above are seen as part of the total process It should be noted that when scientists investigate of investigation. problems, they might follow these steps, but not necessarily in the sequence given. Much time may also In science process teaching and learning, effort should be spent on defining the problem and making initially be directed at teaching explicitly each of the hypotheses. process skills through the use of appropriate activities. In all scientific investigations, the adoption of certain Later effort should be directed to helping students mental attitudes such as curiosity, humility, impartiality, integrate some or all of the process skills in integrity, inventiveness, healthy scepticism, open- experimentation or in carrying out investigative projects. mindedness and perseverance is advocated. Attempts should also be made to promote safety consciousness One way of integrating the process skills will be through among students and to encourage students to adopt scientific problem solving as seen in investigative safe practices. experiments or projects. This is commonly conceived as the scientific method and the steps are: From the types of questions asked by the students, teachers could gather information on their students’ • Make observations, which may lead to the ‘frame of mind’ and the quality of their understanding. identification of a problem. Students should be encouraged to ask both closed and open questions. Opportunities should be provided in the • Suggest a hypothesis, which is a tentative classroom for students to ask questions. The classroom explanation of the problem. environment must be conducive for students to ask questions. To foster this enquiring mind, teachers may • Test the hypothesis, through planning and want to answer a question with a question. conducting of the investigation that may involve using apparatus and equipment to collect data and making observations and classification. • Infer from data, which may lead to a conclusion on the validity of the hypothesis. If the hypothesis is invalid, then another tentative explanation or 9
Lower Secondary Syllabus S/E/N(A) The purpose of assessment is to find out whether a 2 EVALUATION student knows and understands sufficiently to apply knowledge effectively after a period of instruction. Before making a judgement about a certain aspect of Evaluation is an integral part of the teaching-learning students’ performance, the teacher should ensure that process. It involves gathering information through the assessment technique used is reliable. In other various assessment techniques and making value words, the information gained from it should reflect judgements and sound decisions. Assessment accurately the particular aspect of performance the provides information to a teacher about students’ teacher intends to assess. For example, a paper-and- achievement in relation to the learning objectives. With pencil test could be used to test for recall of facts and this information, the teacher makes informed decisions understanding of science concepts but would not be about what should be done to enhance the learning of suitable for assessing students’ practical skills and the students or to improve teaching methods. attitudes. On the basis of assessment data, a teacher can decide The aims of this subject are the acquisition of whether to proceed to the next teaching unit, carry out knowledge and understanding of science concepts, the remedial lessons, set enrichment exercises or modify ability to use process and thinking skills, and the teaching methods. Hence the process of evaluation development of attitudes important to the practice of can help a teacher raise students’ performance by science. Hence, a variety of assessment techniques identifying the needs of students and taking the right must be designed to measure the attainment of these steps in meeting these needs. aims. Assessment should be carried out regularly through the In summary, evaluation is effective when it is integrated use of different techniques such as oral questioning, into the teaching-learning process and carried out observation checklists, assignments, practical and regularly and comprehensively through the use of a written tests. When assessment is carried out on a variety of assessment techniques. continual basis, the teacher has the feedback required to plan his day-to-day teaching. 10
Lower Secondary Syllabus S/E/N(A) 2.1 ASSESSMENT OBJECTIVES • transpose information from one form to another; The assessment objectives for this subject are • process numerical and qualitative data; classified into the three main ideas: knowledge with • identify patterns, report trends and draw understanding; handling, applying and inferences; communicating information (science process skills • present reasoned explanations for and thinking skills); and exploration and phenomena, patterns and relationships; investigation. • make predictions and hypotheses and deduce relationships; (I) Knowledge with understanding • apply knowledge, including principles, to Students should be able to demonstrate knowledge novel situations and problems; and understanding of • communicate ideas and observations • scientific phenomena, facts, concepts and effectively. principles; • scientific vocabulary, terminology and (III) Exploration and investigation conventions; Students should be able to: • scientific instruments and apparatus • follow and carry out instructions accurately including techniques and aspects of safety; and safely; • scientific and technological applications. • identify the problem and then plan and carry out an investigation to solve the problem; (II) Handling, applying and communicating • use and organise techniques, apparatus information (science process skills and and materials effectively and safely; thinking skills) • observe, measure and record accurately; Students should be able to use visual, aural and • interpret, evaluate and establish validity of written (including symbolic, diagrammatic, the observations and experimental data; graphical and numerical) information to: • evaluate methods and suggest possible • locate, select, organise and present relevant improvements. information from a variety of sources; 11
Lower Secondary Syllabus S/E/N(A) 2.2 MODES OF ASSESSMENT The assessment objectives in the area exploration The following modes of assessment could be used to and investigation would generally be assessed in assess the main objectives of this subject: continual assessment. The most appropriate modes of (a) Theory tests assessment would be practical test/work and/or mini (b) Assignments investigative projects. (c) Practical tests (d) Mini investigations Given below is one possible way of allocating the 40% weighting for continual assessment. Teachers could 2.3 GUIDELINES FOR ASSESSMENT vary the weighting allocated to the different modes depending on the needs and characteristics of their (a) Weighting for continual assessment and students. semestral examinations Weighting for Continual assessment The table below shows the weighting for continual assessment and semestral examinations. Semester Theory test Practical Total assessment Weighting I 10% 10% 20% Semester Continual Semestral Total II 10% 10% 20% Assessment Examination Total 20% 20% 40% I 20% 20% 40% II 20% 40% 60% Total 40% 60% 100% 12
Lower Secondary Syllabus S/E/N(A) (b) Format of semestral theory paper Section B (30 - 50 marks) This section is compulsory and will contain at least 4 There will be one paper and the duration is 2 short-answer questions. Each question should not hours. The format of the paper is given below: carry more than 8 marks. Section Item Type Marks Section C (30 - 40 marks) This section will contain 4 - 5 free response/ structured Multiple choice; questions. Students are required to answer 3 - 4 A 20 - 40 questions. 20 - 40 questions. Each question will carry 10 marks. Answer all questions • Syllabus Coverage Short-answer; variable The second semestral examination covers the number. Answer all B 30 - 50 whole year’s work. A maximum of 35% and a questions minimum of 15% of the total marks for the paper should be allotted to topics which have been Free response/ tested in the first semestral examination. Structured C Answer 3 out of 4 or 4 30 - 40 • Weighting of Assessment Objectives for out of 5 questions Written Papers I Knowledge with Understanding, The written paper is divided into three sections, Section approximately 60% of the marks with A, B and C. approximately 30% allocated to recall and 30% to understanding. Section A (20 - 40 marks) This section will contain 20 - 40 compulsory multiple II Handling, Applying and Communicating choice questions. All the questions will be of the direct Information, approximately 40% of the choice type with 4 options. (20 - 40 marks) marks. 13
Lower Secondary Syllabus S/E/N(A) (c) Practical Assessment made available to students. The specific checklist includes the exact requirement of the assessment and Students will be assessed on the following skills: if given to students would defeat the purpose of the assessment. Each skill has a maximum of 6 marks. C1 Using and organising techniques, apparatus and materials Generic Checklist for Practical Assessment C2 Observing, measuring and recording C1: Using and organising techniques, apparatus and C3 Handling and communicating experimental materials observations and data C4 Planning, carrying out and evaluating • follow written, diagrammatic or oral instructions investigations carefully • use apparatus and materials safely and correctly Assessments of these skills are based on practical • apply techniques correctly and methodically work done by the student, or using data that has been C2: Observing, measuring and recording generated in the presence of the students. It is recommended that students in Secondary One be • make careful observations taught C1 and C2 first. Once they have mastered C1 • make accurate measurements and C2, assessment of these two skills can be • take multiple readings where necessary and calculate conducted. C3 and C4 could be introduced and their averages correctly assessed in Secondary Two. However, schools have • record results in a table drawn with a ruler the flexibility to adjust the scheduling of the four skills • add clear headings to rows according to their students’ needs. • add clear headings to columns The criteria for assessment of each of the skills are • include units in the headings but do not repeat them in clearly defined in the following generic checklist for the body of the table practical assessment. This generic checklist should • record all numerical results to the appropriate number be made available to the students. Transparency in of decimal places assessment motivates students to strive for the highest • label diagrams correctly level of achievement. The specific checklist, with • state magnification of drawings correctly, where details to suit the specific experiment, should not be appropriate 14
Lower Secondary Syllabus S/E/N(A) C3: Handling and communicating experimental C4: Mini-investigations (= Planning, carrying out and observations and data evaluating investigations) • select an appropriate calculation • identify the independent, dependent and control • display results in a meaningful manner e.g. graphs, variables charts and drawings • formulate a hypothesis • include title for the graph/chart/drawing • produce a logical plan for a simple investigation • label graph axes fully and include units • *evaluate chosen procedures • *plot graph co-ordinates accurately and draw graph • suggest modifications to original plan lines with ruler from point to point or as a best-fit • carry out the medications if time permits curve • *deal with any inconsistent results by retesting in systematic way • include a discussion on trends and patterns in personal and/or class results • *include a discussion on inconsistencies/ anomalies in Asterisk (*) indicates practical skill, which should be taught at personal and/or class results the awareness level and not to be assessed. • *comment on possible sources of experimental error The details proposed in each practical skill act as a framework and how these might have affected the results of skills to be assessed. However not all the skills could be • write a brief conclusion which relates to the aim of the assessed in a single assessment activity. The list of skills to investigation, based on the results obtained be assessed depends on the assessment activity. 1
Lower Secondary Syllabus S/E/N(A) Syllabus Content SCIENCE AS AN INQUIRY Topic Learning outcomes Remarks Throughout the course students are expected to: Science and (a) recognise that the study and practice of science technology involve three major elements: attitudes, processes or methods, and products (b) recognise that the products of science are the tested data collected by scientists for centuries and explain with examples how people working with science have formulated concepts, principles and theories (c) develop an awareness that science is not confined to the laboratory, but is manifested in all aspects of the world (d) discuss the uses and benefits of science and technology to society (e) develop an awareness of the limitations of science and technology in solving societal problems 2
Lower Secondary Syllabus S/E/N(A) SCIENCE AS AN INQUIRY Topic Learning outcomes Remarks (f) develop sensitivity to the benefits and abuses of the applications of science Attitudes (a) demonstrate during curricular and co-curricular activities, attitudes such as: • willingness to have their own ideas questioned • willingness to modify their own views in the face of new evidence • respect for ideas of others • disposition not to jump to conclusions • scepticism for generalisations not based on verifiable (repeatable) observations • objectivity by seeking data and information to validate observations or explanations • interest and enjoyment in studying the marvels of nature • disposition to try, innovate and attempt creative solutions 3
Lower Secondary Syllabus S/E/N(A) SCIENCE AS AN INQUIRY Topic Learning outcomes Remarks (b) observe laboratory rules at all times when they are in the science laboratories Science process (a) acquire and use during appropriate activities skills throughout the course, the scientific process skills are: • defining a problem or asking a question in clear explicit terms that can be verified by experiment • suggesting a possible hypothesis (tentative explanation) for the problem or phenomenon • determining variables to be measured and controlled • designing simple experiments to test whether the hypothesis (suggested explanation) is correct • making careful observations and repeated measurements • communicating concisely and effectively information in verbal and non-verbal form 4
Lower Secondary Syllabus S/E/N(A) SCIENCE AS AN INQUIRY Topic Learning outcomes Remarks • inferring from data • advancing an explanation based on observation/data collected • stating the limits within which the explanation holds • making some verifiable predictions based on known data • generating new ideas or questions from the results of the investigation so as to start the second cycle of investigation • describing trends in data even when patterns are not exact • analysing alternative explanations and procedures 5
Lower Secondary Syllabus S/E/N(A) MEASUREMENT Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Use of measuring Students are expected to: instruments (a) acquire and use, during appropriate activities throughout the course, the scientific practical skills are: • use of common laboratory apparatus such as the Bunsen burner, handlens, microscope * • use of the following measuring instruments: measuring cylinder, metre rule and measuring tape, vernier callipers, electronic balance, spring balance, stop-watch, thermometers • estimation and/or measurements of length, area, * volume, mass and time (included are the area of irregular two-dimensional figures, volume and mass of liquids and solids but not of gases) Students should be aware that Physical quantities (a) use the appropriate units for length, mass, time and there are other units such as and units temperature volts, ohms, amperes, watts, newtons and joules. These units will be covered in their respective topics. 6
Lower Secondary Syllabus S/E/N(A) MEASUREMENT Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble (b) interpret and use the appropriate prefixes, milli- centi- or kilo- in relation to the units of length and mass (c) explain what is meant by density Students should relate density (d) calculate density using the formula: to floating and sinking. Units for density: g/cm3; kg/m3. density = mass/volume (e) explain what is meant by average speed (f) calculate average speed using the formula Average speed = distance travelled/time taken (g) determine appropriate units for physical quantities such as area, volume, density and rate 7
Lower Secondary Syllabus S/E/N(A) DIVERSITY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Classification of (a) classify a number of common everyday objects and Students should appreciate matter recognise that there are many ways of classifying the that the common everyday same groups of objects objects could be classified in different ways. E.g. • according to their properties (physical or chemical), • their uses, • where they can be found (b) describe the properties of these groups of materials in terms of • density Strength refers to the ability to • strength withstand a heavy load without • hardness breaking. • flexibility Hardness refers to the ability • electrical conductivity to withstand scratches. • thermal conductivity Flexibility refers to the ability • boiling/melting point to bend without breaking. (c) distinguish between the main classes of materials (metals, ceramics, glass, plastics and fibres) in terms of their properties 8
Lower Secondary Syllabus S/E/N(A) DIVERSITY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble (d) use data on the properties of different materials to Illustrate with examples like make evaluative judgements about their uses --plastic, which is easy to mould and a poor conductor of heat, is used to make containers; --aluminium, which is strong and has low density, is used to make the body of aeroplanes. Classification of (a) show an understanding of the need to classify living Thinking skill/process to be plant and animal organisms emphasised life • classifying (b) classify living organisms according to commonly observable characteristics (c) classify living organisms into major taxonomic groups This learning outcome does not require Prokaryotic and Eukaryotic classification, only general classification of animals and plants is (d) construct a dichotomous key expected. (e) use simplified dichotomous keys in identifying and A dichotomous key classifies classifying living organisms objects by dividing them into 2 smaller groups based on 9
Lower Secondary Syllabus S/E/N(A) DIVERSITY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble similarities and differences at every stage. * (a) recognise that substances can be classified as Thinking skills/processes to be Elements, elements, compounds and mixtures emphasised: compounds and • classifying mixtures (b) identify an element as the basic building block of matter • comparing • elaborating (c) recognise that elements are classified according to their properties • information gathering • evaluating (d) classify elements as metals and non-metals based on their characteristic properties As an extension, students (e) describe compounds as substances consisting of two could do research on how the or more chemically combined elements Periodic Table was developed. (f) describe mixtures as two or more elements and/or compounds that are not chemically combined (g) distinguish among elements, compounds and mixtures * (h) show an awareness of basic principles involved in some separation techniques such as filtration, 10
Lower Secondary Syllabus S/E/N(A) DIVERSITY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble distillation and paper chromatography (i) explain how the properties of constituents are used to separate them from a mixture: • magnetic attraction Students could gather • filtration information on the use of the • evaporation various separation techniques • distillation in everyday life and industries. • paper chromatography (j) show an awareness of the applications of the various separation techniques in everyday life and industries (k) show an awareness of the techniques involved in obtaining pure water from sea water in desalination plants (e.g. distillation and reverse osmosis) Infusion of NE message: “No one owes Singapore a living”-- Singapore must find our own way to survive. NEWater is treated used water that has undergone stringent purification and treatment process using micro-filtration, reverse osmosis and ultraviolet technologies. WEBsite: 11
Lower Secondary Syllabus S/E/N(A) DIVERSITY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble www.pub.gov.sg/NEWater Students could gather information on techniques employed in desalination plants. Students could do a cost –benefits analysis of a desalination plant. (a) distinguish among solute, solvent and solution Thinking skills/processes to be Solutions and emphasised suspensions • inferring • experimental inquiry • information gathering (b) deduce the nature of solutions and suspensions by Students should design simple laboratory tests experiments to investigate the effects of the following factors: --temperature --nature of solute/solvent --surface area pH sensor and data-logging (c) investigate the factors that affect the solubility and rate techniques could be used in of dissolving of substances practical work. 12
Lower Secondary Syllabus S/E/N(A) DIVERSITY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble (d) show an awareness of the importance of these factors in homes and industries * (e) show an understanding that indicators are substances that change colour when an acid or alkali is added to them * (f) investigate the effect of a variety of acidic, alkaline and neutral solutions on Universal Indicator paper and natural indicators (i.e. obtained from plants) * (g) investigate the effect on Universal Indicator paper when acidic and alkaline solutions are mixed * (h) investigate the properties of acidic and alkaline solutions (action of alkalis on ammonium salts NOT required) 13
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Particulate model (a) show an awareness that matter is made up of small Thinking skills/processes to be of matter discrete particles which are in constant and random emphasised: motion using the particulate model • comparing • inferring * (b) show an understanding of the simple model of solids, liquids and gases, in terms of the arrangement and Computer simulation or movement of the particles animation or molecular models (c) distinguish among three states of matter (solid, liquid could be used to illustrate the * and gas) concepts. Simple concepts (a) describe an atom as an electrically neutral entity made Thinking skills/processes to be of atoms and up of a positively charged nucleus (protons and emphasised: molecules neutrons) with negatively charged electrons moving • identifying attributes and round the nucleus components (analysing) • comparing (b) show an appreciation of the relative size of an atom • information gathering compared to other objects (c) show an awareness that atoms of the same element As an extension, students contain the same number of protons and those of could do research on different elements contain different numbers of protons development of different atomic models. * (d) recognise that an ion is formed when an atom gains or loses electron(s) 14
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Computer simulation/animation (e) show an understanding of the following: or molecular models could be used to illustrate the concepts. • the distinction between atoms and molecules • that molecules of an element consist of a fixed number of the same type of atoms combined together • that molecules of a compound consist of a fixed number of different types of atoms combined together (f) state the number and types of atoms, given the chemical formula of a compound Cells - structure, (a) examine plant cells under the microscope and identify Students should be able to function and the different parts of a cell viz. appreciate that chlorophyll organisation • cell wall needed for photosynthesis is in • cell membrane the chloroplast. Chloroplast is • cytoplasm mainly present in leaves. • nucleus As an extension, students • vacuole could observe chloroplasts in • chloroplast Hydrilla or Elodea cells. 15
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble (b) examine animal cell under the microscope and identify Thinking skills/processes to be the different parts of the animal cell: emphasised: • cell membrane • cytoplasm • comparing • nucleus • identifying attributes and components (analysing) • observing • inferring • information gathering (c) compare a typical plant cell and a typical animal cell (d) show an understanding of the functions of the different As an extension, students parts of a cell, including the nucleus which contains could do research on the genetic material that determines heredity. development of the cell model. (e) recognise that multicellular organisms (both plants and animals), cells of similar structures are organised into tissues; several tissues may make up an organ; organs are organised into systems (f) explain the significance of the division of labour, even at the cellular level 16
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Digestion in (a) explain what is meant by digestion Thinking skill/process to be animals emphasised: • identifying attributes and components (analysing) • Inferring * (b) explain why most food must be digested Students should appreciate that food that is not in the simplest form must be broken down in order for the body to absorb. Students could infer that the end products of digestion are used for cellular processes like respiration, growth and tissue repair. * (c) describe how a digestive system helps in digestion of food and the part played by enzymes in digestion (Only Computer simulation or classes of enzymes such as amylase, protease and animation could be used to lipase are needed. Specific names of enzymes not illustrate the digestion of food required.) as the food moves down the digestive system. 17
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Transport in (a) observe and infer that diffusion is the movement of Thinking skills/processes to be living things molecules from a region of higher concentration to a emphasised: region of lower concentration • comparing • analysing • elaborating (b) observe and infer that osmosis involves the movement of water molecules when 2 solutions of unequal concentration are separated by a partially permeable membrane (c) explain the need for a transport system in human beings and plants (d) explain how diffusion and osmosis are involved in the transport system (e) describe briefly the process of absorption of water and mineral salts by the root of a plant [Cellular treatment NOT required] (f) describe briefly the transport of water and manufactured food substances in the plant [Cellular treatment is NOT required] 18
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble * (g) describe briefly how blood acts as a transport medium Sexual (a) recognise that heredity is a process where genetic Thinking skills/processes to be reproduction in information is transmitted from one generation to emphasised: human beings another • information gathering • inferring (b) recognise that in sexual reproduction a new individual • observing is formed through the union of an egg and a sperm • analysing • decision making * (c) recognise that a new individual formed through sexual reproduction receives genetic information from its mother (via the egg) and its father (via the sperm) (d) state some of the physical changes that occur during * puberty and early adolescence (e) describe briefly the structures and functions of human * male and female reproductive systems (f) describe briefly the menstrual cycle and fertilisation * (g) describe briefly a temporary and a permanent method of birth control 19
Lower Secondary Syllabus S/E/N(A) MODELS AND SYSTEMS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble (h) state the harmful consequences of sexually transmitted diseases like syphilis, gonorrhoea and AIDS Students to discuss issues using newspaper articles. (i) discuss the consequences and issues relating to: • abortion • pre-martial sex (j) show an awareness of some forms of facilitated Examples of facilitated reproduction in humans reproduction are in-vitro fertilisation and artificial insemination. Infusion of NE message 6, ‘We have confidence in our future.’ The first in-vitro fertilisation in Asia took place in Singapore in 1982. Infant was born on 19 May ’83, 5 years after the birth of the first in-vitro fertilisation in the world. As an extension, students could do research on the various forms of facilitated reproduction in humans. 20
Lower Secondary Syllabus S/E/N(A) ENERGY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble * (a) describe the different sources of energy viz. solar, Thinking skills/processes to be Sources of geothermal heat, nuclear energy, tides, fossil fuels (e.g. emphasised: energy and coal, oil and natural gas), biomass • comparing storage of energy • analysing * (b) explain how energy is extracted from these sources • information gathering and stored for future use • decision-making * (c) state that fossil fuels are exhaustible and explain the This learning outcome could need to develop alternative sources of energy for wide- be linked to Electricity learning scale use outcome (i). (d) discuss the need and ways to reduce energy wastage Infusion of national education message on why the need to conserve energy. Students could access * (e) show an understanding of how scientific developments information on sources of have influenced energy use through the ages energy through using CD-ROM or Internet or even conducting a survey. 21
Lower Secondary Syllabus S/E/N(A) ENERGY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Light (a) show an appreciation of the vast difference in speed Thinking skills/processes to be between light and sound and common moving objects emphasised: • comparing ∗ (b) explain how reflection is affected by a smooth and • inferring rough surface • observing • experimental inquiry (c) give the characteristics of the image formed by a plane mirror Students are to investigate these phenomena of light in ∗ (d) describe the effects and uses of reflecting surfaces practical activities and make (e.g. plane and curved) inferences through observations in everyday life. (e) describe some effects and consequences of refraction (f) explain the difference between reflection and refraction ∗ (g) describe the dispersion of white light by a prism ∗ (h) explain how we see the colour of objects in white light and coloured light such as red, blue and green 22
Lower Secondary Syllabus S/E/N(A) ENERGY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Electricity ∗ (a) explain what is meant by current, potential difference Thinking skills/processes to be and resistance, stating their units emphasised: • inferring • experimental inquiry • observing • information gathering • decision-making ∗ (b) draw and interpret circuit diagrams and set up circuits containing electrical sources, switches, lamps, resistors (fixed and variable), ammeters and voltmeters (c) recognise that the resistance of a circuit can be varied by arranging resistors in series or in parallel [Calculations are NOT required] (d) investigate the effect of varying resistance on the ∗ current in the circuit using fixed or variable resistors (e) discuss qualitatively the chemical, heating and ∗ magnetic effects of an electric current and list some applications (f) explain what is meant by power and state its units 23
Lower Secondary Syllabus S/E/N(A) ENERGY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble (g) solve simple problems on the cost of using electrical Students could conduct a appliances, using kilowatt-hour as a unit of electrical study to investigate the energy consumption amount of electrical energy used in their home in a year. (h) state some electrical hazards and precautionary measures to ensure the safe use of electricity in the home (i) discuss the importance of reducing electrical energy This learning outcome could wastage be linked to Sources of energy and storage of energy, learning outcome (d). Photosynthesis (a) briefly outline the process of photosynthesis by which Thinking skills/processes to be and respiration plants manufacture carbohydrates using raw materials emphasised: • analysing • inferring • comparing • information gathering • experimental inquiry (b) trace the primary food source in a food chain to the green plant 24
Lower Secondary Syllabus S/E/N(A) ENERGY Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble ∗ (c) show an understanding of the conditions necessary for photosynthesis (d) compare the conditions for healthy growth of Conditions necessary for ornamental plants and large scale crop production photosynthesis. include presence of light, chlorophyll, availability of carbon dioxide and water. Illustrate photosynthesis with a word equation. (e) compare respiration and breathing Respiration refers to the cellular release of energy from food substances in all living cells. Breathing refers to the movements that caused exchange of gases between (f) show an understanding of how plants take in oxygen the body and its surroundings. and remove carbon dioxide As an extension, students (g) describe aerobic respiration and state its importance could do research on methods and construct a word equation for aerobic respiration such as hydroponics and aeroponics. (h) compare photosynthesis and respiration. 25
Lower Secondary Syllabus S/E/N(A) INTERACTIONS Topic Learning outcomes Remarks Meaning of asterisk(*) and underlined outcomes in Preamble Chemical (a) observe the changes that matter (i.e. element, Thinking skills/processes to be changes compound or mixture) undergoes through emphasised: • mixing • observing • heating • inferring • exposure to light • comparing • passing of an electric current • decision-making • information gathering (b) identify a chemical reaction as a process leading to the Students should appreciate formation of new products that a change which does not lead to formation of new (c) show an awareness that there are different types of product(s) is not a chemical reactions such as combustion, thermal decomposition, change. oxidation Physical change is not included in the Primary (d) use word equations to represent chemical reactions Science Revised Syllabus. (e) state that materials from a variety of sources can be converted into new and useful products by chemical reactions (f) show an awareness that the following everyday changes involve chemical reactions • burning 26
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