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Chemistry tuition for Chung Cheng High School (Yishun) students
Live online Chemistry tuition for Chung Cheng High School (Yishun) students in secondary 3–4. Bring recent schoolwork and teacher feedback so our tutors can see where your child needs help and plan the lessons.
Secondary 3–4
Courses and years
Pure Chemistry
Years 3–4
Combined Science (Chemistry)
Years 3–4
Bring recent schoolwork and the current topic list so we can choose a suitable class.
Study guide · 01
Particles, bonding and structure: explain properties precisely
Pure Chemistry questions can ask students to connect a structure with an observable property. Identify the type of particles, how they are arranged and the forces or bonds relevant to the property. A statement about melting needs a different explanation from one about electrical conductivity, even when both questions concern the same substance.
For a simple molecular substance, distinguish the forces between molecules from the covalent bonds within each molecule. For an ionic substance, distinguish the strength of the lattice interactions from the ability of ions to move. Those distinctions prevent a correct term from being used in an incorrect explanation.
Compare two substances using the same property. Explain how each structure affects it, then describe the difference. Try the explanation aloud without notes. If you are unsure which particles or forces matter, review those first.
Study guide · 02
Chemical calculations: make each step follow the equation
Plan the calculation: convert the given quantity to moles, use the balanced equation’s mole ratio and convert to the quantity asked for. Label each substance so you can check you are comparing the right pair.
Check the conditions in the question. A gas-volume calculation needs the stated conditions or molar volume. A solution calculation needs consistent volume units. If the question supplies information about excess or limiting quantities, use it before deciding how much product can form. Select the method from the evidence given.
The task
5.0 g of calcium carbonate reacts completely with excess hydrochloric acid. Given Mr(CaCO₃) = 100 and a gas molar volume of 24 dm³/mol at the stated conditions, calculate the carbon dioxide volume. Equation: CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂.
Worked response
Amount of CaCO₃ = 5.0 ÷ 100 = 0.050 mol. The CaCO₃:CO₂ mole ratio is 1:1, so 0.050 mol of CO₂ forms. Volume = 0.050 × 24 = 1.2 dm³.
Convert the calcium carbonate mass to moles, then use the 1:1 ratio to find the carbon dioxide amount. The acid is in excess, so the calcium carbonate determines how much gas forms. Finally convert the gas amount to volume.
Study guide · 03
Connect reactions across acids, redox, energetics and rates
Reaction topics become more useful when the student can explain the same change in several ways. An acid reaction can be represented by an equation, identified through observations and used in a calculation. A redox question can ask how oxidation states or electron transfer establish what was oxidised and reduced. Keep the definition connected to the species in the question.
For energetics, track where energy is transferred and distinguish bond breaking from bond formation. For rate questions, identify the changed condition and explain its effect on relevant collisions. If a graph is supplied, distinguish a faster reaction from a larger final amount of product; they describe different features of the results.
The Periodic Table, organic chemistry and air-quality topics also need explanation and application. Use the official outcomes to choose appropriate examples. A named topic is a starting point for revision; the verbs in its outcomes indicate whether the student should recall, explain, calculate or interpret information.
Study guide · 04
Practical Chemistry: observations, data and evaluation
Practical preparation includes choosing a method, making careful observations, processing results and evaluating the conclusion. For qualitative analysis, keep the test, observation and inference as separate steps. A colour change or precipitate is an observation; the identification of a substance is the conclusion supported by it.
When evaluating an experiment, identify the actual source of uncertainty and explain how the proposed change addresses it. Repeating measurements helps examine consistency, but it does not automatically remove a systematic problem in the method. A useful improvement needs a specific reason linked to the apparatus, measurement or procedure.
We use apparatus diagrams, results and experiment questions to practise planning and data interpretation online. Bring practical feedback as well as theory papers. Hands-on apparatus work takes place through the school’s laboratory programme.
Study guide · 05
A revision sequence for Pure Chemistry in Sec 3–4
Review particles, structure, formulae and equations, then practise the calculations and reactions that use them. Use the twelve-topic syllabus to check coverage and try questions without notes to see what still needs work.
Within a topic, alternate explanation questions with calculations and data interpretation where the outcomes require them. Later, mix topics so that the student must choose the relevant idea. Review multiple-choice distractors by explaining why each alternative fails; for structured questions, check that each part of the task has been answered.
Before an assessment, practise timed sections and full papers. Note where you lose time and check the working remains clear. Tutors use those mistakes to plan lessons, followed by platform practice and spaced review. Share the subject code and examination year when arranging a trial.
Study guide · 01
Structured answers: separate an observation from an explanation
Check what the question asks for. An observation describes what is seen or measured. An explanation gives the chemical reason. A conclusion says what the results show. Answer that part directly.
Use precise language. “A gas is produced” identifies an observable change but does not name the gas. Naming a gas requires appropriate evidence or other information in the question. Where an equation is requested, confirm the substances and balance it before using its coefficients in later working.
The task
In a written experiment scenario, a gas is bubbled through limewater, which turns milky. State the observation and the conclusion supported by the test.
Worked response
Observation: The limewater turns milky. Conclusion: The gas contains carbon dioxide.
“Turns milky” is the observation. Carbon dioxide is the conclusion from that test. Keep the distinction when answering other qualitative-analysis questions.
Study guide · 02
Calculations and data questions: show a method that can be checked
Label the substance and quantity on every calculation line. Read any equation or data given before choosing a relationship. Convert units where required and show how the values connect to the unknown. Clear working makes it possible to identify whether an error began with chemistry, unit conversion or arithmetic.
For a graph or table, read the labels and units before interpreting the pattern. Describe a trend using the quantities involved, then use the relevant concept to explain it. A larger final value and a steeper initial gradient can mean different things. Give numerical evidence when the question asks for support from the results.
After checking a calculation, explain why you used those values. This helps you choose the information when another question gives it in a different order.
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Lessons and practice, every week
Class registration for the 2027 school year is open.
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Class format
Live online
Weekly duration
1.5 hours
Levels
Secondary 3–4
Between lessons
Subject practice on the DeepThink platform
Practice is included as part of the classes.
Registration
2027 school year
Open now. Request a trial class and we will message you to confirm the level and schedule.
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Class registration for the 2027 school year is open. Bring recent schoolwork to help us plan a useful first lesson.
About Chung Cheng High School (Yishun)
PSLE cut-off point for Chung Cheng High School (Yishun)
MOE publishes the PSLE score of the first and the last student posted into each school at each posting group. Below are Chung Cheng High School (Yishun)'s figures for the 2026 Secondary 1 intake — the 2025 PSLE cohort. The last student's score is what is usually meant by the school's cut-off point.
| Posting group | PSLE score range |
|---|---|
| Posting Group 3 | AL 6–11 |
| Posting Group 2 | AL 21–22 |
| Posting Group 1 | AL 25–27 |
Cut-off points move by a few points from year to year, and not every student who met the cut-off was posted here — some are tie-broken out. Read these as a guide to where a school sits, not as a threshold to clear.
Actual 2026 Secondary 1 intake, from MOE School Finder — last verified on 12 August 2026. MOE School Finder ↗
About Chung Cheng High School (Yishun)
Chung Cheng High School (Yishun) (CCHY) is a co-educational government-aided secondary school in Yishun, Singapore. It is an affiliated school and a former branch school of Chung Cheng High School (Main).
School Overview
Chung Cheng High School (Yishun) is a government-aided, co-educational secondary school located in northern Singapore. The school traces its heritage to Chung Cheng High School, which was established in 1939 as one of the country's prominent Chinese-medium institutions. The Yishun branch began operations in 1947 and was reconstituted in 2007 to serve the growing student population in the area. The school operates as a single-session institution and holds autonomous status.
Guided by its motto, which translates to "Success through Diligence and Perseverance," the school places strong emphasis on bilingual proficiency in English and Chinese, alongside character development and holistic education. It is affiliated with Nanyang Junior College, providing students with a smoother pathway to junior college admission. Two signature programmes shape the school's identity: the Applied Learning Programme (ALP) in STEM, centred on Health and Food Science, and the Learning for Life Programme (LLP) in Music and Performing Arts. Together, these programmes combine scientific inquiry with creative expression to develop well-rounded students.
Admission Process
Students are admitted to Chung Cheng High School (Yishun) primarily through the annual PSLE posting exercise. Based on the 2024 intake, the indicative PSLE Achievement Level (AL) cut-off points were: Posting Group 3 (Express) — 4 to 11 for non-affiliated students; Posting Group 2 (Normal Academic) — 21 to 22; and Posting Group 1 (Normal Technical) — 25 to 27. These figures reflect the score of the last student admitted in each category and may vary from year to year.
The school also participates in the Direct School Admission (DSA) exercise, accepting applications in areas such as Performing Arts (including Chinese Dance and Chinese Orchestra), Sports (including Volleyball and Wushu), STEM, and Leadership. DSA applications are submitted through the MOE DSA portal, which typically opens around the middle of the year.
As part of Full Subject-Based Banding (SBB), students admitted to Chung Cheng High School (Yishun) can take individual subjects at different levels from Secondary 1 onward, based on their strengths. This allows for more flexible learning pathways across the O-Level curriculum. Parents considering the school are encouraged to attend its annual open house events and review MOE SchoolFinder for the most current admission information.
Curriculum and Academic Programme
The academic programme at Chung Cheng High School (Yishun) follows the MOE national curriculum, with students working toward the GCE O-Level examinations. Core subjects include English Language, Mathematics, Additional Mathematics, the Sciences (Biology, Chemistry, Physics), and Humanities (Geography, History, Social Studies). Mother Tongue offerings focus on Chinese Language, with Higher Chinese and Basic Chinese also available. Elective subjects span Art, Design and Technology, Nutrition and Food Science, Principles of Accounts, Computing, Literature in English, and Music.
The school's Applied Learning Programme, titled "Our Story Of Food," integrates real-world applications in health and food science with STEM principles, giving students hands-on experience in scientific research and nutrition. The Learning for Life Programme, "HeARTs for the Arts," develops creativity and cultural appreciation through music and performing arts activities that complement the school's co-curricular offerings.
Facilities and Co-Curricular Activities
The campus at Chung Cheng High School (Yishun) includes air-conditioned classrooms fitted with interactive technology, well-equipped science and computer laboratories, a library with bilingual resources, a multipurpose sports complex, and dedicated studios for the performing arts. Facility upgrades in recent years have expanded the STEM lab infrastructure to support the school's Applied Learning Programme.
All students participate in at least one Co-Curricular Activity (CCA), which forms a compulsory part of secondary school life. The school offers approximately 20 CCAs across four categories.
Sports and Games include Basketball (Boys), Fencing, Volleyball, Wushu, Outdoor Adventure, and Track and Field. Uniformed Groups comprise the National Police Cadet Corps (NPCC), St John Brigade, Scouts, and National Cadet Corps (NCC) Air. Performing Arts offerings include Chinese Orchestra, Choir, Guzheng Ensemble, Modern Dance, Chinese Dance, Chinese Drama, Concert Band, and Chinese Drums — several of which are recognised talent areas under the DSA scheme. Clubs and Societies cover Audio Visual Aid, Entrepreneurship, Environmental Science, and Journalism.
These activities contribute to character development, teamwork, and leadership skills, and are factored into holistic assessments for post-secondary progression.
Student Life and School Culture
School culture at Chung Cheng High School (Yishun) is shaped by the values of perseverance, integrity, gratitude, and empathy. The school day typically begins at 7:30 AM with a morning assembly, followed by six to seven hours of lessons and CCA sessions, concluding by mid-afternoon. Class sizes generally range from 35 to 40 students, and the school maintains a teacher-to-student ratio of approximately 1:15.
Pastoral care is provided through form teachers, a dedicated counselling team, and Special Educational Needs Officers who support students requiring additional assistance. Well-being initiatives and anti-bullying programmes are in place in line with MOE guidelines.
The co-educational environment encourages students from different backgrounds to learn alongside one another. For Secondary 1 students transitioning from primary school, the school runs orientation programmes and peer buddy systems to help them settle into the new academic routine and social setting. Parents looking for practical ways to support their children during this adjustment period often find that establishing consistent daily study habits and maintaining open communication with teachers makes a meaningful difference.
Frequently Asked Questions about Chung Cheng High School (Yishun)
Is Chung Cheng High School (Yishun) a good school?
Chung Cheng High School (Yishun) is a government-aided co-educational secondary school with autonomous status and competitive admission cut-off points. It offers a strong bilingual curriculum, signature programmes in STEM (Health and Food Science) and Music and Performing Arts, and a wide range of CCAs. Parents are encouraged to visit during open house events or contact the school directly for a closer look at what it offers.
Is Chung Cheng High School (Yishun) a co-educational school?
Yes. Chung Cheng High School (Yishun) admits both boys and girls and operates as a single-session government-aided secondary school.
Does Singapore officially rank secondary schools?
The Ministry of Education does not publish official rankings of secondary schools in Singapore. When evaluating schools, parents may wish to consider factors such as PSLE cut-off points, available programmes, CCA offerings, and school culture.
What are the PSLE cut-off points for Chung Cheng High School (Yishun)?
Based on the 2024 intake, the indicative Achievement Level cut-off points were: Posting Group 3 — 4 to 11 (non-affiliated), Posting Group 2 — 21 to 22 (non-affiliated), and Posting Group 1 — 25 to 27 (non-affiliated). These figures represent the score of the last student admitted and may change from year to year. Check MOE SchoolFinder for the latest figures after each posting exercise.
What subjects are offered at Chung Cheng High School (Yishun)?
The school offers English Language, Mathematics, Additional Mathematics, Biology, Chemistry, Physics, Humanities (Social Studies, Geography, History), Chinese Language, Higher Chinese Language, Malay Language, Art, Design and Technology, Nutrition and Food Science, Principles of Accounts, Computing, Literature in English, Music, and Physical Education. Tamil Language lessons are conducted at designated centres. Subject combinations may vary by cohort.
What CCAs are available at Chung Cheng High School (Yishun)?
Sports include Basketball (Boys), Fencing, Volleyball, Wushu, Outdoor Adventure, and Track and Field. Uniformed Groups are NPCC, St John Brigade, Scouts, and NCC (Air). Performing Arts cover Chinese Orchestra, Choir, Guzheng Ensemble, Modern Dance, Chinese Dance, Chinese Drama, Concert Band, and Chinese Drums. Clubs and Societies include Audio Visual Aid, Entrepreneurship, Environmental Science, and Journalism.
Is Chung Cheng High School (Yishun) affiliated with a junior college?
Yes. The school is affiliated with Nanyang Junior College, which may provide priority admission consideration for eligible students during the Joint Admissions Exercise.
How can I apply via Direct School Admission (DSA)?
The school participates in the DSA exercise, with applications typically opening in May each year. Talent areas span Performing Arts, Sports, STEM, and Leadership. Applications are submitted through the MOE DSA portal. Parents should check the school's website for the specific talent categories available in each intake cycle.
What is the school's address and contact information?
Chung Cheng High School (Yishun) is located at 11 Yishun Street 61, Singapore 768547. Operating hours are Monday to Friday, 7:00 AM to 7:00 PM (closed on weekends and public holidays). The school can be reached at +65 6758 3912 or by email at [email protected].
What is the Applied Learning Programme (ALP)?
The ALP at Chung Cheng High School (Yishun) focuses on STEM through Health and Food Science, under the title "Our Story Of Food." It integrates real-world scientific applications with nutrition studies, giving students practical experience alongside the core academic curriculum.
What is the Learning for Life Programme (LLP)?
The LLP, titled "HeARTs for the Arts," centres on Music and Performing Arts. It aims to develop creativity, cultural awareness, and character through artistic activities, complementing the school's performing arts CCAs.
Does the school offer subject-based banding?
Yes. Under Full Subject-Based Banding (SBB), students at Chung Cheng High School (Yishun) can take subjects at different levels based on their individual strengths from Secondary 1 onward. This includes more demanding options in English, Mother Tongue, Mathematics, and Science, allowing for personalised learning pathways leading to the O-Levels.
What O-Level subjects are available?
Upper secondary O-Level subjects include Additional Mathematics, Biology, Chemistry, Physics, Computing, Higher Chinese Language, Literature in English, Principles of Accounts, Nutrition and Food Science, and Humanities (Social Studies combined with Geography or History), among others. Students select subject combinations based on their strengths and interests.
Is Chung Cheng High School (Yishun) a SAP school?
No. Chung Cheng High School (Yishun) is not designated as a Special Assistance Plan (SAP) school. However, it does offer Higher Chinese Language and places strong emphasis on bilingual education and Chinese cultural appreciation through its programmes.
What uniformed groups are available?
The school offers four uniformed groups: National Police Cadet Corps (NPCC), St John Brigade, Scouts, and National Cadet Corps (NCC) Air. These CCAs develop discipline, leadership, and a sense of community responsibility.
What character development programmes does the school have?
Character development is woven through the Learning for Life Programme in Music and Performing Arts, CCAs, and values education sessions that emphasise integrity, gratitude, and empathy. Special Educational Needs Officers are also available to support student well-being.
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