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Under the recent syllabus, candidates can choose between Chemistry and ICT, although Combined Mathematics and Physics are mandatory. Combined Mathematics is a combination of Pure Mathematics and Applied Mathematics. Previously, candidates had to study these two subjects separately, but with the introduction of the Combined Mathematics syllabus ...
The Sri Lankan Ordinary Level (O-level) formerly called Senior School Certificate (SSC), is a General Certificate of Education (GCE) qualification in Sri Lanka, conducted by the Department of Examinations of the Ministry of Education. It is based on the Cambridge University Ordinary Level qualification.
Both Pearson Edexcel and CAIE offer International GCSE qualifications. O-Level qualification has become a replacement for the matriculation qualification (SSC) offered by the Government boards of education. However, due to the high costs associated with IGCSE qualifications, their reach is limited to middle to elite class families.
GCE O Level, IGCSE and GCE AS/A Levels are managed by British examination boards of CIE of the Cambridge Assessment and Edexcel of the Pearson PLC. Advanced Placement (AP) is an alternative option but much less common than GCE or IGCSE. This replaces the secondary school education as "high school education" instead.
However the exam papers of the GCSE sometimes had a choice of questions, designed for the more able and the less able candidates. When introduced the GCSEs were graded from A to G, with a C being set as roughly equivalent to an O-Level Grade C or a CSE Grade 1 and thus achievable by roughly the top 25% of each cohort.
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
Mathematical tables are lists of numbers showing the results of a calculation with varying arguments.Trigonometric tables were used in ancient Greece and India for applications to astronomy and celestial navigation, and continued to be widely used until electronic calculators became cheap and plentiful in the 1970s, in order to simplify and drastically speed up computation.
There are three common naming conventions for specifying one of the two enantiomers (the absolute configuration) of a given chiral molecule: the R/S system is based on the geometry of the molecule; the (+)- and (−)- system (also written using the obsolete equivalents d- and l-) is based on its optical rotation properties; and the D/L system is based on the molecule's relationship to ...