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Mr Angus Chia has spent 10 years helping students strengthen their Chemistry knowledge and achieve better results through private tuition, small group classes and student care programmes. A former student of St. Joseph’s Institution and National Junior College, and an NTU alumnus, he earned 9 distinctions at the GCE O-Level examinations. He specialises in Combined Science Chemistry tuition for students taking Science (Physics, Chemistry) or Science (Chemistry, Biology). He helps students build strong Chemistry fundamentals, understand difficult concepts, master chemical equations and calculations, and develop exam techniques for the Chemistry component of Combined Science.

Combined Science Chemistry Tuition Singapore
Many Secondary 3 and Secondary 4 students in Singapore find Chemistry the hardest part of Combined Science to score in, because they must also keep up with Physics or Biology. At TutorSay, we offer Combined Science Chemistry tuition in Singapore through one-to-one tuition, small-group classes, and home tuition, so your child can strengthen Chemistry for school tests, prelims, and the O Level without losing time on the rest of the Science workload.
Individual attention on the Chemistry topics your child finds hardest, whether they take Science (Physics, Chemistry) or Science (Chemistry, Biology).
Guided explanations, shared problem-solving, and exam-style Chemistry practice with Singapore secondary school students on the same syllabus.
A Chemistry tutor who comes to your HDB flat, condo, or landed home, guiding your child through equations, mole calculations, and definitions at their own pace.
Build strong foundations in Secondary 3, then sharpen exam technique, past-year paper practice, and practical skills in Secondary 4.
About Our Combined Science Chemistry Tuition
Combined Science Chemistry is not a shortened version of Pure Chemistry. Under the MOE syllabus, students sit a focused Chemistry syllabus, answer one Chemistry structured and free-response paper, and share the multiple-choice paper and practical test with Physics or Biology. TutorSay lessons are planned around exactly this Singapore-Cambridge format, so time is spent on what your child's Science examination actually tests: clear concepts, accurate equations and calculations, and well-structured written answers that follow the way SEAB marking schemes award marks.
Combined Science Chemistry Programme
Whichever Science combination your child takes in school, the Chemistry content is taught and tested in the same way. Lessons move from core ideas such as particles, atomic structure, and bonding to calculations, practical skills, and exam-style questions modelled on school WA, mid-year, and prelim papers.
For students taking Science (Physics, Chemistry), we focus on the Chemistry sections while helping them balance Chemistry revision with Physics calculations.
For students taking Science (Chemistry, Biology), we strengthen Chemistry concepts and precise definitions so they stay consistent alongside a content-heavy Biology syllabus.
Cover atomic structure, bonding, formulae and equations, the mole concept, acids and bases, redox, and organic chemistry in a logical order.
Practise multiple-choice, structured, and free-response questions, including past-year papers and school papers, so your child knows how to show working and phrase scientific explanations.
Why TutorSay for Combined Science Chemistry
Secondary school students in Singapore often struggle with definitions, mole calculations, and applying concepts to unfamiliar questions. TutorSay helps by explaining Chemistry clearly, practising regularly, and adjusting each lesson to your child's school, pace, and exam timeline.
Content and depth follow the Chemistry section of Combined Science, so your child is not taught Pure Chemistry material they will not be tested on.
Lessons target the topics a student finds hardest, such as bonding, the mole concept, or organic chemistry.
Students discuss methods and learn from each other's reasoning while working through Chemistry questions.
Abstract ideas such as ionic and covalent bonding, redox, and stoichiometry are explained step by step with worked examples.
Help for students taking Physics/Chemistry or Chemistry/Biology, with revision planned around their other Science subject.
Regular practice with equations, calculations, and written answers keeps lessons aimed at the Chemistry topics that need the most work before WA, prelims, and the O Level.
Combined Science Chemistry Syllabus Singapore
TutorSay supports Singapore secondary students taking Chemistry as one of the two sciences in GCE O Level Science (Physics, Chemistry) 5086 or Science (Chemistry, Biology) 5088. From 2027, these subjects become G3 Science (Physics, Chemistry) K326 and G3 Science (Chemistry, Biology) K328 under the new Singapore-Cambridge Secondary Education Certificate (SEC), as MOE moves to Full Subject-Based Banding. Our lessons cover the full Chemistry content of both.
Experimental design, separation techniques, kinetic particle theory, and atomic structure.
Ionic and covalent bonding, and the structure and properties of ionic, simple molecular, giant covalent, and metallic substances.
Balancing equations, relative masses, mole calculations, and stoichiometry, including titration calculations.
Acid-base reactions, salt preparation, oxidation and reduction, the Periodic Table, and the reactivity series.
Energy changes in reactions, and the factors that affect how fast reactions happen.
Fuels, hydrocarbons, alcohols, carboxylic acids, polymers, and the causes and effects of air pollution.
Combined Science Exam Preparation
In the Singapore-Cambridge O Level, Combined Science Chemistry is spread across three parts of the examination. Knowing how marks are shared helps students plan their revision for prelims and the national exam, and practise the right question types.
A 40-mark multiple-choice paper covers both of the student's sciences, so Chemistry questions sit alongside Physics or Biology questions.
A 65-mark paper of 1 hour 15 minutes testing calculations, explanations, and application of concepts to unfamiliar situations.
A 30-mark practical test of 1 hour 30 minutes that includes Chemistry experimental skills alongside the second Science.
Students practise O Level past-year papers and school prelim papers so they can manage time across Chemistry and their other Science subject.
Combined Science Chemistry Practical Preparation
The Science practical test carries marks for both Chemistry and the second Science, so every mark counts. Guided practice with practical past papers helps Singapore students follow procedures, record observations accurately, and explain results with confidence before the school practical and the O Level practical.
Practise setting up, reading, and recording titrations, and calculating results accurately.
Learn to test for ions and gases, record observations in the right format, and draw correct conclusions.
Practise planning fair tests, such as rate of reaction investigations, and presenting tables and graphs clearly.
Detailed feedback on observations and conclusions helps students spot errors and refine their technique.
Pure Chemistry vs Combined Science Chemistry
Singapore parents often ask which pathway suits their child at the Secondary 3 subject-combination stage. Both lead to a recognised national qualification, but they differ in depth and in how Chemistry is examined.
Chemistry is a standalone subject with a fuller syllabus and its own papers (6092, becoming K324 from 2027).
Chemistry is one of two sciences, with a focused syllabus and a single Chemistry structured paper (5086/5088, becoming K326/K328).
Combined Science students benefit from concise, high-yield Chemistry revision that fits alongside a second science.
Our lessons are pitched at Combined Science depth, so your child practises the right questions without unnecessary extra content.
Chemistry Tuition Near You in Singapore
TutorSay can arrange Combined Science Chemistry home tuition or small-group lessons for your child. Families commonly ask for Chemistry tuition in Tampines, Bedok, Jurong East, Jurong West, Clementi, Bishan, Toa Payoh, Ang Mo Kio, Woodlands, Yishun, Sengkang, Punggol, Hougang, Serangoon, Bukit Timah, and Bukit Batok. Share your postal code and your child's school and level, and we will recommend a suitable tutor and lesson format.
Enquire about one-to-one or small-group Combined Chemistry tuition and find a suitable learning arrangement for your child
Combined Science Chemistry tuition focuses on the Chemistry component of Combined Science, where Chemistry is studied as one of two sciences rather than as a standalone Pure Chemistry subject. Lessons cover the Chemistry topics in the syllabus, such as bonding, equations, the mole concept, acids and bases, redox, and organic chemistry.
Pure Chemistry is a standalone subject with a fuller syllabus and its own examination papers. In Combined Science, Chemistry has a more focused syllabus and is assessed alongside Physics or Biology, so lessons need to be pitched at the right depth for the examination.
TutorSay lists Combined Science support covering Chemistry and Physics. Contact the team to confirm availability for other Science combinations and the classes currently offered.
Yes. Under the new Singapore-Cambridge Secondary Education Certificate, Science (Physics, Chemistry) 5086 becomes K326 and Science (Chemistry, Biology) 5088 becomes K328 from 2027. Students should check the latest syllabus on the SEAB website.
Under the current O Level format, Chemistry appears in a shared multiple-choice paper, a Chemistry structured and free-response paper, and a shared practical test. Students should confirm the latest paper details with their school or on the SEAB website.
Starting early in Secondary 3 gives students more time to build strong foundations in equations, calculations, and definitions. Students in Secondary 4 can also use tuition to practise exam-style questions and strengthen weaker topics before the national examination.
Both can work well. 1-to-1 lessons give more personalised attention to a student's weak areas, while small group classes allow collaborative problem-solving. TutorSay offers both options, and you can contact the team to discuss which suits your child.
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