International AS Chemistry builds on the skills acquired at International GCSE (or equivalent) level. The syllabus includes the main theoretical concepts which are fundamental to the subject, some current applications of chemistry, and a strong emphasis on advanced practical skills. Practical skills are assessed in a timetabled practical examination. 

The emphasis throughout is on the understanding of concepts and the application of chemistry ideas in novel contexts as well as on the acquisition of knowledge. The course encourages creative thinking and problem-solving skills which are transferable to any future career path. International AS Chemistry is ideal for learners who want to study chemistry or a wide variety of related subjects at university or to follow a career in science.

The aims of the TAO course:

The aims are to enable students to:

• acquire knowledge and understanding and develop practical skills, including efficient, accurate and safe scientific practices
• learn to apply the scientific method, while developing an awareness of the limitations of scientific theories and models
• develop skills in data analysis, evaluation and drawing conclusions, cultivating attitudes relevant to science such as objectivity, integrity, enquiry, initiative and inventiveness
• develop effective scientific communication skills, using appropriate terminology and scientific conventions
• understand their responsibility to others/society and to care for the environment
• enjoy science and develop an informed interest in the subject that may lead to further study

AS Level subject content 

Candidates for International AS Level Chemistry study the following topics: 

• Physical chemistry 1 Atomic structure 2 Atoms, molecules and stoichiometry 3 Chemical bonding 4 States of matter 5 Chemical energetics 6 Electrochemistry 7 Equilibria 8 Reaction kinetics 
• Inorganic chemistry 9 The Periodic Table: chemical periodicity 10 Group 2 11 Group 17 12 Nitrogen and sulfur 
• Organic chemistry 13 An introduction to AS Level organic chemistry 14 Hydrocarbons 15 Halogen compounds 16 Hydroxy compounds 17 Carbonyl compounds 18 Carboxylic acids and derivatives 19 Nitrogen compounds 20 Polymerisation 21 Organic synthesis 
• Analysis 22 Analytical technique

How are candidates assessed?

Paper 1 multiple Choice [1 hour 15 minutes 40 marks] 40 multiple-choice questions

Paper 2 Structured [1 hour 15 minutes Questions 60 marks] Structured questions

Paper 3 Advanced Practical Skills [2 hours 40 marks] Practical work and structured questions based on the experimental skills in the Practical assessment section of the syllabus.