Chemistry Grade 9

Overview

Cambridge IGCSE Chemistry Syllabus at GEMS Wesgreen International Secondary School aims to provide the students an opportunity to develop attitudes relevant to chemistry such as; concern for accuracy and precision, objectivity and inquiry. It will provide students the opportunity to study wide range of courses including Cambridge International AS & A Level Chemistry.

Learning Outcomes

The aims of all subjects state what a teacher may expect to teach and what a student may expect to experience and learn. These aims suggest how the student may be changed by the learning experience.

The aims of the Science Syllabus are to encourage and enable students to:

  • develop scientific knowledge and conceptual understanding through the specific disciplines of biology, chemistry and physics
  • develop understanding of the nature, processes and methods of science through different types of science enquiries that help them to answer scientific questions about the world around them
  • are equipped with the scientific knowledge required to understand the uses and implications of science, today and for the future.

Ongoing Objectives

Throughout each unit, the students are given the opportunity to build on the objectives below:

  • provide an enjoyable and worthwhile educational experience for all learners, whether or not they go on to study science beyond this level
  • enable learners to acquire sufficient knowledge and understanding to:
  • become confident citizens in a technological world and develop an informed interest in scientific matters
  • be suitably prepared for studies beyond Cambridge IGCSE
  • allow learners to recognise that science is evidence-based and understand the usefulness, and the limitations, of scientific method
  • develop skills that:
  • are relevant to the study and practice of chemistry
  • are useful in everyday life
  • encourage a systematic approach to problem-solving
  • encourage efficient and safe practice
  • encourage effective communication through the language of science
  • develop attitudes relevant to chemistry such as:
  • concern for accuracy and precision
  • objectivity
  • integrity
  • enquiry
  • initiative
  • to enable learners to appreciate that:

-science is subject to social, economic, technological, ethical and cultural influences and limitations

-the applications of science may be both beneficial and detrimental to the individual, the community and the environment.

Unit Overviews

G9 Term 1

For blended learning we will provide video links, live demonstrations of practical investigation as well as access to the relevant worksheets and resources that all students will need.

 1 Particulate nature of Matter                                         

 Approximate length: 12weeks

This section covers concept that will be important throughout the course. First, we will look at how to distinguishing properties of solids, liquids and gases  then experimental techniques Name appropriate apparatus for the measurement of time, temperature, mass and volume, including burettes, pipettes and measuring cylinders We will then consider relative charges and approximate relative masses of protons, neutrons and electrons then differences between elements, mixtures and compounds, and between metals and non-metals

Unit 1               Particulate Nature of Matter

Unit 2               Experimental techniques

Unit 3               Atoms, elements and compounds

Specific National Curriculum Objectives Covered:

a simple model of the atom consisting of the nucleus and electrons, relative atomic mass, electronic charge and isotopes.

• the number of particles in a given mass of a substance.

changes of state of matter in terms of particle kinetics, energy transfers and the relative strength of chemical bonds and intermolecular forces.

• types of chemical bonding: ionic, covalent, and metallic.

• bulk properties of materials related to bonding and intermolecular forces.

• structures, bonding and properties of diamond, graphite.

distinguishing between pure and impure substances.

• separation techniques for mixtures of substances: filtration, crystallisation, chromatography, simple and fractional distillation.

Term 2

For blended learning we will provide video links, live demonstrations of practical investigation as well as access to the relevant worksheets and resources that all students will need.

2. Stoichiometry, periodic table and electricity and chemistry   

Approximate length: 11 weeks

Stoichiometry expresses the quantitative relationship between reactants and products in a chemical equation. The symbols of the elements and write the formulae of simple compounds. The periodic table is a graphical collection of element data. The table lists the chemical elements in order of increasing atomic number, which is the number of protons in an atom of an element and its use to predict properties of elements.

Electrolysis as the breakdown of an ionic compound and relate the products of electrolysis to the electrolyte and electrodes used. Predict the products of electrolysis of a specified halide in dilute or concentrated aqueous solution and construct ionic half-equations for reactions at the cathode.

Unit 4.1            Stoichiometry

Unit 9            The Periodic Table

Unit 5            Electricity and chemistry

Specific National Curriculum Objectives Covered:

• quantitative interpretation of balanced equations.

balanced chemical equations, ionic equations and state symbols.

the modern Periodic Table, showing elements arranged in order of atomic number.

• position of elements in the Periodic Table in relation to their atomic structure and arrangement of outer electrons.

• properties and trends in properties of elements in the same group.

• characteristic properties of metals and non-metals.

electrolysis of molten ionic liquids and aqueous ionic solutions.

Term 3

For blended learning we will provide video links, live demonstrations of practical investigation as well as access to the relevant worksheets and resources that all students will need.

3 Chemical energetics, Chemical reactions, Sulphur

Approximate length: 7 weeks 

Chemical energetics discusses both thermodynamics and kinetics or reactions. Thermodynamics discusses changes based on amounts of energy. Chemical reaction includes practical method for investigating the rate of a reaction involving gas evolution. Redox reaction that involves a transfer of electrons between two species

Unit 6             Chemical energetics

Unit 7             Chemical reactions

Unit 12           Sulphur

Specific National Curriculum Objectives Covered:

reduction and oxidation in terms of loss or gain of oxygen.

Measurement of energy changes in chemical reactions.

• Bond breaking, bond making, activation energy and reaction profiles.

factors that influence the rate of reaction: varying temperature or concentration, changing the surface area of a solid reactant or by adding a catalyst.

• factors affecting reversible reactions.

Assessment

Formative: Throughout the units, the children will complete graded work, quizzes and investigation activities, which allows the teacher to assess the students’ attainment and inform their planning.

For each unit the students complete a pre and posttest. This allows us to see progress across the units and to inform our planning.

Summative: At the end of each term, we complete internal tests. This allows us to measure the students’ progress throughout the term and year.

Next Steps

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