If your child receives PSLE Score 25 with Standard Science AL5 or better, the family may choose Posting Group 1 or Posting Group 2 for Secondary 1. Under Full Subject-Based Banding, the strong Science result may permit the pupil to study G2 or G3 Science from a G1 starting level, or G3 Science from a G2 starting level, subject to the receiving school’s actual offer. Parents should assess whether the child can reason about experiments, understand scientific vocabulary, read graphs and explain evidence, while also considering English, Mathematics and Mother Tongue readiness. The aim is to preserve genuine scientific curiosity within an appropriate whole-week timetable, not to choose the most demanding label automatically.

For the 2026 PSLE cohort entering Secondary 1 in 2027, the published MOE school cut-offs describe 2025 PSLE posting into the 2026 Secondary 1 intake, not a guarantee for the next cohort. Kranji Secondary had a historical PG2 endpoint of 24 and PG1 of 28; Bedok Green’s PG2 endpoint was 25 and PG1 was 30*, a special notation indicating previous unfilled places. These figures help parents understand the differences between posting routes, but they do not predict school quality or future admission. A good shortlist considers the child’s actual learning pace, safe journey, access to practical Science, CCAs and teacher support, with six schools the child would genuinely attend.

Quick summary for parents
• PSLE Score 25: eligible to choose PG1 or PG2 through the ordinary S1 posting exercise.
• Standard Science AL5 or better: can qualify for G2 or G3 Science from a G1 starting level, or G3 Science from a G2 start, subject to the school’s offer.
• Taking Science at G3 does not make a pupil a PG3 applicant.
• Choose one Posting Group for all six schools and compare only the correct historical range.
• Scores from the 2025 PSLE cohort’s 2026 entry are reference points, not known 2027 cut-offs.
• Investigate experimental reasoning, language and Mathematics foundations, lab safety, programmes and commute.
• Confirm the receiving school’s timetable, subject-level acceptance procedure and the child’s wishes.

Definition lock: the Science level is not the posting group

At score 25, the official choice band is between Posting Group 1 and Posting Group 2. Posting Groups facilitate school allocation and guide the usual starting subject levels. The general levels—G1, G2 and G3—describe the demand of individual subjects. A pupil who enters a school through PG1 can still learn Science at G3 when eligible, while the other subjects may begin at G1.

The eligibility table used by schools explains that a Standard subject result of AL5 or better permits an offer at G2 or G3 from the indicative G1 level. From the indicative G2 level, it permits G3. These options apply to English Language, Mother Tongue Language, Mathematics and Science. A school’s actual subject-level offer, procedures and timetable must be confirmed before parents treat a level as final.

It is important to distinguish Standard Science AL5 from Foundation Science A. Foundation A contributes an equivalent AL6 to the PSLE total and can support a different, G2-level option; it is not the Standard AL5 threshold for G3 from PG2. Families should record the original subject grade, not merely its equivalent total-score contribution.

A score of 25 might consist of Science AL4, English AL7, Mathematics AL7 and Mother Tongue AL7. The strong Science grade is meaningful, but the family should investigate whether the other three subjects are ready for a broader G2 load or would benefit from a G1 starting pace. That is why school selection cannot be reduced to the aggregate alone.

PG1 with higher Science versus PG2 with higher Science

Family consideration	PG1 with an eligible Science offer	PG2 with an eligible Science offer
Ordinary starting level of other subjects	G1 unless otherwise offered	G2 unless otherwise offered
Science if Standard AL5 or better	May be offered G2 or G3	May be offered G3
Historic school range to read	PG1 non-affiliated or eligible affiliated range	PG2 non-affiliated or eligible affiliated range
Main benefit to consider	Stretch Science while consolidating other skills	G2 general learning with more demanding Science
Question for the school	How will G3 Science work alongside lower-level other subjects?	Can the pupil manage Science and the rest of the G2 timetable?

Neither route is automatically better for every pupil. A child who loves investigating the natural world but needs more support with English comprehension and Mathematics may benefit from a mixed-level arrangement in PG1. A child with good independent study habits and relatively stable performance in the other subjects may be ready for PG2 with G3 Science.

At a more demanding Science level, pupils may need to interpret graphs, use measurements and explain cause-and-effect relationships clearly. A child with a strong Science grade can still find those tasks challenging when presented with unfamiliar language or data. The family should ask about scaffolding, feedback and practical laboratory instruction, not just whether a higher-level offer exists.

The general education experience also matters. How much homework is assigned? What does the first term of English look like? Does the pupil have time for an enjoyable CCA and adequate sleep? The best subject combination is one that can be sustained beyond the first school assessment.

School comparisons: how the same score enters different posting groups

The following are 2025 PSLE historical non-affiliated cut-offs for the 2026 Secondary 1 intake, cross-checked against published score references. They are not promises or predicted 2027 cut-offs. Use MOE SchoolFinder as the final authority for the school’s current profile and admission route.

Secondary school	PG2 last posted	PG1 last posted	Area and school-fit research
Kranji Secondary School	24	28	Choa Chu Kang; sustainable design and Science reasoning
Greenridge Secondary School	25	28	Bukit Panjang; applied learning and teacher feedback
Punggol Secondary School	24	27	Punggol; Science programmes and local route
Edgefield Secondary School	23	27	Punggol; school culture and student support
Queensway Secondary School	25	28	Queenstown; lower-secondary subjects and CCAs
Northbrooks Secondary School	25	27	Yishun; co-curricular opportunities and journey
Bedok Green Secondary School	25	30*	Bedok; practical learning and PG1 vacancy notation

At score 25, the PG2 historical cut-off for Kranji was 24, meaning the child was beyond that prior endpoint. Greenridge and Queensway had PG2 endpoints of 25, placing the child at the old boundary. The same schools had PG1 endpoints of 28, giving a three-point numerical historical margin if the family chose PG1. The relevant school column follows the Posting Group chosen for the application.

Because 25 is the maximum ordinary PG2 score, families considering PG2 at this boundary may not be able to find schools with a cut-off numerically greater than the child’s score. MOE’s usual advice to choose two or three schools with a favourable historic margin cannot be satisfied mechanically here. Do not invent an impossible PG2 cut-off of 26 as reassurance.

The 30* notation at Bedok Green indicates the school had unfilled places after that previous PG1 posting exercise. It does not guarantee future vacancies, nor does it mean a pupil with an otherwise ineligible score can be admitted. The symbol should be preserved in any parent worksheet and read with its official explanation.

No cut-off is a direct measure of Science teaching. A school with a more competitive previous endpoint may not offer the best laboratory experience or student support for every child. Ask what ordinary students learn, how teachers correct misconceptions, and whether the child can travel to school without exhausting the time needed for homework and rest.

How parents can recognise genuine scientific readiness

An AL5 or better in Standard Science gives useful evidence of prior achievement, but does not show exactly where the child’s strengths lie. Some pupils are excellent at remembering biological facts but struggle to explain why a result follows from an experiment. Others are good at diagrams and practical activities but find long written explanations challenging.

Ask the Primary 6 teacher for examples of unfamiliar application questions. Can the pupil identify the scientific idea, distinguish observation from inference and explain the link between the evidence and their conclusion? Does the child understand what makes an investigation fair? The ability to reason accurately is often a better clue about readiness than the number of memorised model answers.

The family can ask the child to describe how they would test a simple idea. Which condition should be changed? What should be measured? What else must stay the same? A strong learner may not have the correct plan immediately, but can improve it after noticing a limitation. That ability to revise thinking is central to Science.

Interest should be considered alongside assessment. Does the child enjoy exploring how a system works? Do they ask questions, read about natural phenomena or like building and testing models? A pupil who finds Science genuinely engaging may be willing to put in the effort required by deeper learning, provided the school offers appropriate support.

Observation versus inference: a small but important difference

Consider two identical plants kept in different conditions. An observation might be that one plant is taller after a week. Saying it is healthier is an inference that needs more evidence, because height alone may not describe every aspect of health. Pupils should learn to record what they actually see or measure before explaining why it happened.

A fair comparison also requires careful control. If the plants receive different amounts of light and water, a difference in growth cannot be confidently attributed to light alone. This kind of reasoning is relevant to more demanding secondary Science: identifying variables, considering alternatives and recognising uncertainty.

The family can practise these ideas without expensive equipment. Talk through a safe experiment or examine results printed in a book. Ask which observations are measurements and which statements are conclusions. Do not recreate dangerous chemical or electrical experiments at home; formal practical work belongs under the school’s safety rules.

A good school should teach pupils not merely to recite the words ‘independent variable’ and ‘controlled variable’, but to identify these correctly in unfamiliar examples. When evaluating schools, ask how students learn to explain experiments and whether teachers provide feedback on errors in reasoning.

Reading graphs and tables: where Science meets Mathematics

G3 Science can involve measurements, tables and graphs that require numerical understanding. A pupil who is less strong in Mathematics may still be ready for higher Science if they receive appropriate support, but parents should be realistic about the skills required. Reading axes and units is different from simply spotting the highest bar.

Ask the child what a graph shows. Which variable is on the horizontal axis? Which is measured vertically? Does the line increase, decrease or remain constant? Can the pupil make an accurate statement without claiming that the graph proves a cause when it only shows an association?

Measurement skills also matter. Students may need to read a scale accurately, compare volumes or calculate a simple rate. If the child struggles with decimals or units, practise those ideas with safe everyday contexts, such as weighing ingredients or reading the volume of water in a measuring cup. Avoid teaching formula manipulation before the quantities make sense.

A school offering G3 Science to a pupil studying G1 or G2 Mathematics should be asked how it handles bridging needs. The goal is to preserve scientific challenge while helping the pupil understand the mathematical language necessary to participate confidently.

Scientific writing: knowing the idea is not enough

A child may describe a Science concept fluently in conversation but write an unclear examination response. More demanding secondary Science requires precise vocabulary and explanation. Words such as ‘increase’, ‘concentration’, ‘rate’ and ‘energy’ have specific meanings; loose language can hide a genuine misconception.

Teach a simple structure: state the claim, identify supporting evidence, then explain the scientific relationship. If the question asks why a substance dissolves faster under one condition, the pupil needs to link observation with the relevant concept, not write a memorised paragraph about an unrelated variable.

For a child who is weaker in English, the family can practise short scientific explanations with diagrams and oral discussion first. The student can then turn the reasoning into sentences. This does not mean English AL7 automatically prevents G3 Science, but it shows the importance of support when choosing the level.

In a prospective school, ask how Science teachers teach subject-specific vocabulary, respond to incomplete explanations and help pupils understand command words. Students should know not only that an answer was wrong but precisely why the evidence did not support it.

What the Secondary 1 Science transition may feel like

Primary Science introduces important ideas about living systems, materials, energy and the environment. Secondary Science develops many of these ideas with greater precision, experimental reasoning and unfamiliar applications. The exact teaching sequence varies by school and subject level; families should not assume that every class starts with the same chapter.

A pupil who was comfortable with familiar plant or electricity questions may feel uncertain when asked to evaluate an experimental method. This is a normal change in the kind of thinking required. A good teacher can show how a known concept connects to a new representation or practical problem, rather than leaving the pupil to memorise long answers.

The parents’ role is to make questions safe. Ask what the child learned, what remained unclear and which evidence would help. Avoid treating every early mistake as proof the pupil chose the wrong level. A child can develop rapidly when teaching identifies the exact missing understanding.

At the same time, monitor wellbeing and the whole timetable. If G3 Science demands so much time that Mathematics, English and rest are consistently neglected, ask the school for help. Appropriate challenge should support engagement rather than constant exhaustion.

School profile: Kranji’s design-innovation programme

Kranji Secondary’s published Applied Learning Programme focuses on design innovation for sustainable living. That theme may appeal to a child who enjoys investigating real-world issues such as resource use, efficiency and waste. Scientific thinking can be applied to observation, measurement, testing ideas and revising a design after feedback.

The school does not become the best choice automatically because the programme sounds scientific. Ask what every Secondary 1 pupil actually does, whether advanced enrichment is selective and how the school teaches Science alongside its applied learning. Kranji’s historical PG2 endpoint of 24 and PG1 endpoint of 28 place a score-25 applicant in very different historical positions, depending on the route.

The family’s journey to Choa Chu Kang also matters. A science-interested pupil may gain little from a prestigious-sounding project if the daily commute leaves them too tired to participate. Compare the practical whole-school experience, not only a programme title.

School profile: Greenridge and environmental problem-solving

Greenridge Secondary is in Bukit Panjang, with prior PG2 and PG1 endpoints of 25 and 28. This is a useful historical comparison for score 25, but the school must be researched for its own programme and curriculum. Parents can ask about environmental design, scientific data collection, pupil collaboration and ordinary Science lessons.

A student may enjoy building a model and then testing whether it solves a problem. The parent should ask whether the school assesses the reasoning process or simply the final presentation. An effective practical programme encourages pupils to revise after evidence shows an idea does not work as expected.

If the child is offered G3 Science through PG1 or PG2, investigate how the subject class will be timetabled and how teachers support students with uneven Mathematics or English readiness. The school should be a place where the pupil can test and explain ideas rather than merely repeat science vocabulary.

School profile: Punggol Secondary and Edgefield

Punggol Secondary and Edgefield are both within Punggol, but they are separate schools with different programmes and student experiences. The historical PG2 endpoints were 24 and 23, while both showed PG1 endpoints of 27. A score-25 family choosing PG2 should recognise these as historical reaches rather than assume they are secure because the schools are nearby.

A family choosing PG1 may have a different numerical comparison, but must still consider the usual G1 starting load in other subjects and the possible G3 Science offer. Ask about laboratories, school projects, CCA availability and how pupils are guided in the first term.

A shorter journey can provide time for reading and preparing Science work. Parents should compare the actual route from home, not simply conclude that every school in the same estate takes the same time to reach.

School profile: Queensway, Northbrooks and Bedok Green

Queensway in Queenstown, Northbrooks in Yishun and Bedok Green in Bedok all had historical PG2 endpoints of 25. Their PG1 endpoints were 28, 27 and 30* respectively. Those numbers are important for interpreting admission history, but the schools differ in location and educational experience.

A family should investigate whichever options are sensible from home, then ask what ordinary Secondary 1 Science looks like. Are there practical lessons? How are safety and scientific writing taught? How do students access help? Are advertised Science enrichment projects available to all interested pupils or only selected teams?

Do not build a six-school list by placing a school far away in sixth position merely because its previous cut-off seems favourable. The child needs a genuine, sustainable backup. A choice is useful only if the family could accept the actual school day associated with it.

A family case: Science AL4 with weaker English

Imagine Science AL4, English AL7, Mathematics AL7 and Mother Tongue AL7, totalling 25. The pupil loves investigating natural phenomena but finds extended reading and written explanations slow. The family initially thinks PG2 must be selected so the child can take G3 Science.

The Primary 6 teacher points out that Standard Science AL4 also permits an eligible G3 offer from an indicative G1 start. The family therefore compares PG1 and PG2 based on the other subjects, not on the mistaken assumption that PG1 necessarily prevents higher-level Science. They ask prospective schools how Science literacy and data interpretation are taught.

At score 25, the family notes that historical PG2 school cut-offs often sit at the boundary, while PG1 may have a larger numerical margin. They do not allow this arithmetic alone to determine the route. They listen to their child, check travel and evaluate where the pupil will feel confident asking questions.

If the school later offers G3 Science, the child is encouraged to learn the new scientific language gradually. A strong AL is a foundation for challenge, not a demand never to make mistakes.

A second case: Science AL5 and balanced readiness

Another child has Science AL5, English AL6, Mathematics AL7 and Mother Tongue AL7, totalling 25. Their teachers report consistent attendance and relatively stable independent learning habits. The family may consider PG2 with G3 Science because the pupil seems ready for the general G2 load.

They investigate schools whose previous PG2 endpoints reached 25, understanding that these are old boundaries rather than guaranteed offers. A nearby school with a welcoming form class, strong CCA and appropriate Science support may be better than a distant school with a more selective previous cut-off.

The family also considers PG1 because its more flexible subject combination and larger historical margins might be suitable. The child is included in the decision. Their own interests in sport, practical science and social life are legitimate inputs alongside academic readiness.

This example shows that the same score and relatively strong Science result can support different thoughtful choices. The right answer depends on the learner and actual school, not a fixed formula.

A four-week safe Science practice plan after posting

In the first week, check the receiving school’s actual Science offer and the correct timetable. If the pupil is offered G3 Science, ask which textbooks and materials are required and what the response deadline is. Do not rely on an old sibling’s school list. Let the child become familiar with classroom expectations and school laboratory safety guidance.

In the second week, practise reasoning with observations. Use a short written experiment from a school text and ask what was measured, which condition changed and what was controlled. Encourage the child to state one conclusion supported by evidence and one limitation of the method.

In the third week, focus on interpreting diagrams, tables and graphs. Ask the child to explain what the axes show, which units are used and how the evidence supports the conclusion. This integrates scientific and numerical literacy without requiring hazardous home experiments.

In the fourth week, review the whole timetable. Is the pupil coping with English, Mathematics, Mother Tongue and CCA as well as Science? Can they ask for help when a question is unclear? Praise careful correction of a misconception. Scientific progress is better measured through accurate reasoning than through memorising the longest possible answer.

Six-choice school planning at the score-25 boundary

Begin with the route: PG1 or PG2. List schools that offer the chosen group, can be reached realistically and have programmes the child actually likes. Use the corresponding 2025 historical school range for every option. Do not mix the PG2 figure from one school with a PG1 figure from another on a single final list.

A balanced list has genuine favourites and acceptable alternatives. MOE generally recommends two or three schools with a positive historical score margin where possible, but a score-25 PG2 applicant is at the upper end of that group’s score range. Do not mislead the family by inventing numerically higher cut-offs. Consult current MOE guidance when planning this boundary case.

Rank the selected six in real preference order. School choice order can matter as a tie-breaker after citizenship among students with the same score. It does not override ineligibility or ensure a seat at a school that the cohort strongly prefers.

A school that supports an eligible G3 Science pupil while providing a manageable general timetable is more useful than one selected solely because parents feel it sounds academically elite. The child’s daily education should be the main objective.

Open-house questions that reveal real Science teaching

• Does a PG1 pupil with Standard Science AL5 or better have an actual option to take Science at G2 or G3?
• Does a PG2 pupil with the same Science grade receive a G3 offer, and how is it accepted?
• How do teachers teach experimental variables, evidence, scientific vocabulary and precise explanations?
• What laboratory safety instruction is provided before practical work?
• How is a pupil supported if Science is at G3 but English or Mathematics is at G1 or G2?
• Which applied-learning projects and Science CCAs are available to ordinary pupils?
• How are teachers able to review subject levels when the pupil’s overall load becomes difficult?
• What are the normal reporting, dismissal, CCA and transport requirements?

Frequently asked questions

Can PSLE 25 choose PG1 and still study G3 Science?

A pupil starting most subjects at G1 with Standard Science AL5 or better meets the published subject-grade criterion for G2 or G3 Science, subject to the receiving school’s actual offer.

Does strong Science make the child eligible for PG3?

No. The child’s total score of 25 gives the ordinary PG1/PG2 choice. A G3 Science offer is an individual subject-level decision.

Does Foundation Science A provide the same G3 eligibility?

No. Foundation A contributes equivalent AL6 for posting and is treated under a different, G2 subject-level criterion.

Should we choose the school with the lowest historical cut-off?

Not automatically. Historical cut-offs describe previous admission demand, not quality of Science lessons. Compare actual programmes, student support and location.

Are Science projects and competitions available to every student?

Not necessarily. Some activities are schoolwide and others selective. Ask the school what ordinary Secondary 1 students experience.

Is a score-25 PG2 application guaranteed where the previous cut-off was 25?

No. It places the pupil at the previous boundary, and cut-offs can change with the next cohort’s applications and tie-breakers.

Final parent checklist

• We checked the PSLE total of 25 and the original Standard Science AL.
• We distinguished the chosen Posting Group from eligible G2 or G3 Science subject levels.
• We compared the correct historical PG1 or PG2 ranges, retaining any 30* notation.
• We assessed experimental reasoning, graphs, scientific writing and other subject readiness.
• We checked actual school programme participation, CCA, student support and transport.
• We selected six acceptable schools in genuine preference order.
• We will verify 2027 MOE instructions and the receiving school’s actual Science subject offer.

Official and related resources

MOE Secondary 1 Posting; MOE SchoolFinder; Bukit View Secondary: Full SBB subject-level eligibility table; Admiralty Secondary: Full SBB parent FAQs; General PSLE Score 25 guide; Companion: Foundation Science A.

Evidence checked 1 November 2026. Historical school figures refer to the 2025 PSLE cohort entering Secondary 1 in 2026, not fixed or predicted 2027 admission cut-offs. The child’s official eligibility and school subject offer take precedence.