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O-Level Chemistry Syllabus (6092)

Introduction to O-Level Chemistry Syllabus

The O-Level Chemistry Syllabus is designed to place less emphasis on factual materials while greatly emphasising on the understanding and application of scientific concepts and principles. This approach has been adopted in recognition of the need for students to develop skills that will be of long-term value in an increasingly complex and globalised world, rather than focusing on large quantities of factual material, which may have only short-term relevance.
It is envisaged that teaching and learning programmes based on this syllabus will feature a wide variety of learning experiences designed to promote acquisition of scientific expertise and understanding, and to develop values and attitudes relevant to science. Teachers are encouraged to use a combination of appropriate strategies including developing practical work for their students to facilitate a greater understanding of the subject. It is expected that students will apply investigative and problem-solving skills and effectively communicate the theoretical concepts covered in this course.

Aims of O-Level Chemistry

The aims of a course based on this O-Level Chemistry syllabus should be to:

  1. provide a worthwhile educational experience for all students, whether or not they go on to study science beyond this level.
  2. develop in students the understanding and skills relevant to the practices of science, and enable them to
    1. appreciate practical applications of Chemistry in the real world
    2. deepen their interest in Chemistry for future learning and work
    3. become scientifically literate citizens who can innovate and seize opportunities in the 21st century
    4. develop a way of thinking to approach, analyse and solve problems by explaining macroscopic characteristics and changes in chemical systems through the use of sub-microscopic and symbolic representations.
  3. develop in students the values, ethics and attitudes relevant to science such as
    1. curiosity – desiring to explore the environment and question what is found
    2. creativity – seeking innovative and relevant ways to solve problems
    3. integrity – handling and communicating data and information with complete honesty
    4. objectivity – seeking data and information to validate observations and explanations without bias
    5. open-mindedness – accepting all knowledge as tentative and suspending judgment, tolerance for ambiguity, willingness to change views if the evidence is convincing
    6. resilience – not giving up on the pursuit of answers/solutions, willingness to take risks and embrace failure as part of the learning process
    7. responsibility – showing care and concern for living things and awareness of our responsibility for the quality of the environment
    8. healthy scepticism – questioning the observations, methods, processes and data, as well as trying to review one’s own ideas.

Disciplinary Ideas of Chemistry

The disciplinary ideas of Chemistry described below represent the overarching ideas which can be applied to explain, analyse and solve a variety of problems that seek to address the broader questions of what matter is and how particles interact with one another. Equipping students with a coherent view and conceptual framework facilitates the application and transfer of learning. These disciplinary ideas can be revisited and deepened at higher levels of learning and beyond the schooling years.

  1. Matter is made up of a variety of chemical elements, each with characteristic properties, and the smallest particle that characterises a chemical element is an atom.
  2. The structure of matter and its chemical and physical properties are determined by the arrangement of particles and electrostatic interactions between them.
  3. Energy changes across and within systems usually occur during physical and chemical changes, when there is a rearrangement of particles.
  4. Energy plays a key role in influencing the rate and extent of physical and chemical changes.
  5. Matter and energy are conserved in all physical and chemical changes.

Assessment Objectives

The Assessment Objectives listed below reflect those parts of the Aims and Practices of Science that will be assessed.

 

A Knowledge with Understanding

 

Candidates should be able to demonstrate knowledge and understanding in relation to:

 

  1. scientific phenomena, facts, laws, definitions, concepts and theories
  2. scientific vocabulary, terminology and conventions (including symbols, quantities and units contained in
    Signs, Symbols and Systematics 16–19, Association for Science Education, 2000)
  3. scientific instruments and apparatus, including techniques of operation and aspects of safety
  4. scientific quantities and their determination
  5. scientific and technological applications with their social, economic and environmental implications.

The syllabus content defines the factual knowledge that candidates may be required to recall and explain. Questions testing these objectives will often begin with one of the following words: define, state, name,
describe, explain or outline.

B Handling Information and Solving Problems

Candidates should be able (in words or by using symbolic, graphical and numerical forms of presentation) to:

  1. locate, select, organise and present information from a variety of sources
  2. translate information from one form to another
  3. manipulate numerical and other data
  4. use information to identify patterns, report trends and draw inferences
  5. present reasoned explanations for phenomena, patterns and relationships
  6. make predictions and propose hypotheses
  7. solve problems.

These Assessment Objectives cannot be precisely specified in the O-Level Chemistry syllabus content because questions testing such skills may be based on information which is unfamiliar to the candidate. In answering such questions, candidates are required to use principles and concepts that are within the syllabus and apply them in a logical, reasoned or deductive manner to a novel situation. Questions testing these objectives will often begin with one
of the following words: predict, deduce, suggest, calculate or determine.

C Experimental Skills and Investigations
Candidates should be able to:

  1. follow a sequence of instructions
  2. use techniques, apparatus and materials
  3. make and record observations, measurements and estimates
  4. interpret and evaluate observations and experimental results
  5. plan investigations, select techniques, apparatus and materials
  6. evaluate methods and suggest possible improvements.

Weighting of Assessment Objectives

Theory Papers (Papers 1 and 2)

A Knowledge with Understanding, approximately 45% of the marks with approximately 15% allocated to recall.

B Handling Information and Solving Problems, approximately 55% of the marks.

Practical Assessment (Paper 3)
Paper 3 will assess appropriate aspects of assessment objectives C1 to C6 in the following skill areas:

  • Planning (P)
  • Manipulation, measurement and observation (MMO)
  • Presentation of data and observations (PDO)
  • Analysis, conclusions and evaluation (ACE)

The assessment of Planning (P) will have a weighting of 15%. The assessment of skill areas: MMO, PDO and ACE will have a weighting of 85%.

Scheme of Assessment

Candidates are required to enter for Papers 1, 2 and 3.

Paper Type of Paper Duration Marks Weighting

1

Multiple Choice

1 h

40

30%

2

Structured and Free Response

1 h 45 min

80

50%

3

Practical

1 h 50 min
40
20%

Theory Papers

Paper 1 (1 h, 40 marks)

This paper consists of 40 compulsory multiple-choice items.

Paper 2 (1 h 45 min, 80 marks)

This paper consists of two sections.

Section A will carry 70 marks and consist of a variable number of compulsory structured questions. The last two questions will carry 20 marks, one of which is a data-based question requiring candidates to interpret, evaluate or solve problems using a stem of information. The data-based question will carry 8–12 marks. 

Section B will carry 10 marks and will consist of two questions. Candidates must answer only one out of these two questions.

 

Practical Assessment

Paper 3 (1h 50 min, 40 marks)

This paper consists of a variable number of compulsory practical questions.

One, or more, of the questions may incorporate assessment of Planning (P) and require candidates to apply and integrate knowledge and understanding from different sections of the syllabus. The PDO and ACE assessment may include data-analysis questions that do not require practical equipment and apparatus.
Candidates cannot refer to notebooks, textbooks or any other information during the assessment.

Full O-Level Chemistry syllabus details can be read in the SEAB O-Level Chemistry Syllabus 6092.