Free · ~20 Questions · ~20 Minutes
Know what you don't know.

Where does your child really stand in O-Level Chemistry?

A short SEAB-aligned diagnostic to find out where the gaps actually are — plus a personalised WhatsApp note from Cher (NUS Chemistry, 20 years private tuition).

~20 questions calibrated to the Sec 3/4 syllabus
Auto-scored with topic-by-topic insight
Email follow-up + optional free consult
No pressure. No spam. Just a clear next step.

Instant Result — Sample

Combined Chemistry
13/20
B3–B4 trajectory Shown on screen the moment the test ends — strongest and weakest topics at a glance.
Atomic Structure
88%
Bonding
74%
Acids & Bases
62%
Redox
55%
Electrolysis
38%
Chemical Calc.
32%

Want the full analysis? Ms Tan prepares a personalised 2-page report for the free 15-min consult.

Take Your Child's Free Test →
Completely free
No account or registration required
Takes ~20 minutes
SEAB 2026 aligned questions
Personal review from Cher included

Three steps to a personalised plan

From test to consultation — here's exactly what happens after your child takes the diagnostic.

01

Take the ~20-minute test

~20 carefully chosen questions covering core O-Level Chemistry topics. Your child takes the test on any device and sees the topic-by-topic summary instantly.

02

Topic summary emailed to parent

The topic-by-topic summary is emailed to you automatically. Want the full picture — mistake patterns, priorities, next steps? Book the free consult and Ms Tan prepares a personalised 2-page report.

03

WhatsApp Cher only if interested

If you'd like Cher to walk through the report personally — strengths, gaps, what to focus on — book a free 15-min Zoom consult at cal.com/learnfromcher/consult, or message her on WhatsApp. She usually replies within the same day. If the report alone is enough, no action needed.

What's in the test?

The diagnostic is designed to quickly reveal where your child's knowledge is strong and where the gaps are — covering all the topics that matter most for O-Level Chemistry.

Questions
~20
Multiple choice
Duration
20 min
Time limit · auto-submit
Topics
17 / 13 / 9
Pure / Combined / N(A)
Result
Instant
Topic-by-topic summary

Core O-Level Chemistry areas covered

Atomic Structure
Chemical Bonding
Stoichiometry & Mole Concept
Acids, Bases & Salts
Qualitative Analysis
Redox & Electrolysis
Energetics & Rate of Reaction
Periodic Trends & Metals
Organic Chemistry
Air Quality & Atmosphere

Pure Chemistry (6092) covers 17 SEAB topics · Combined Science Chemistry (5086/5088) covers 13 · N(A) Combined (5105 / 5107) covers 9. The test calibrates to your child's programme.

Start Free Diagnostic Test

Enter your details. You'll see your topic-by-topic summary instantly after the test. We'll also email it to you, plus an option to book a free 15-min consult with Ms Tan.

Sec 3 students on Full SBB: G3 students take Pure (6092) or Combined Science (5086/5088). G2 students take Combined Chemistry N(A) (5105 / 5107) and sit N-Level at end of Sec 4. Sec 4 cohort sits O-Level 2026 (last under current code). Sec 3 will be the first SEC cohort in 2027 — same syllabus content, new certification.

OR
Message Cher directly on WhatsApp

Your details are used only to send the report and follow up with Cher. We never share your information with third parties.

What's in the personalised consult report?

If you book a free 15-min Zoom consult after the test, Ms Hannah Tan personally prepares this 2-page report to walk you through during the call. It's yours to keep after.

Topic-by-topic breakdown

Every topic area is scored separately — so you can see at a glance which topics are strong, which need attention, and which are the biggest priority to fix before the exam.

Estimated current grade

Based on the results, your report includes an estimated current grade (A1–F9 scale) and what it would take to move to the next grade band — specific, not vague.

Gap identification

The report highlights your child's specific weak areas — not just "Organic Chemistry is weak" but which type of Organic question is causing marks to drop.

Personalised recommendations

If you book the free 15-min consult, Ms Hannah Tan prepares a polished 2-page report with a personal note — which programme fits best, where to start, and what the first focus should be. Specific to your child.

Email + WhatsApp follow-up

You'll get an email with the topic summary right after the test. If you'd like to go deeper, book a free 15-min Zoom consult at cal.com/learnfromcher/consult — or reply to the email, or WhatsApp Cher, and she'll usually get back to you the same day.

A clear path forward

The 15-min Zoom consult ends with a clear plan: what programme fits your child, where to start, and a realistic picture of what's needed to reach the target grade. No guesswork.

Sample Consultation Report — what Cher prepares for you after the test

Diagnostic Report — Wei Jian

Sec 4 · Combined Science Chemistry (5086) · SEAB 2026

B4
Est. Grade

Topic Scores

Atomic Structure
88%
Bonding
76%
Acids & Bases
63%
Redox
57%
Speed of Reaction
50%
Electrolysis
38%
Chemical Calc.
30%
Organic Chem.
42%

Cher's Assessment

Strong Foundation Atomic Structure and Bonding are solid. Wei Jian understands the theory — the issue is applying it under exam conditions.
Keywords Issue Acids & Bases and Redox scores suggest Wei Jian knows the concepts but is using informal language in answers. Classic H-step problem — wrong words, correct ideas.
Priority: Chemical Calculations 30% on Chemical Calculations is the biggest drag on the grade. This single topic accounts for ~20% of Paper 3. Must fix this first.
Electrolysis — Common Trap 38% on Electrolysis is typical for students who haven't drilled the electrode product rules. Very fixable in 2–3 focused sessions.

Twenty years, one message

After 20 years, the feedback is always the same: “I don't understand when my school teacher explains it — but I understand you.” My method is patience: explaining the same concept three different ways, as many times as it takes, in words a fifteen-year-old actually uses — until it clicks.

— Cher

Questions about the diagnostic

Is the diagnostic test really free? +
Yes — completely free with no obligation. There is no charge for the test or for the topic summary you receive. If you decide you'd like a 15-min Zoom consult with Ms Tan to walk through a personalised report, that is also free. You only pay if you choose to enrol afterwards.
Does my child need to register or create an account? +
No. The test can be taken without any account or login. You provide a name and email so we can send the topic summary to you.
How long does the test take? +
The test has a 20-minute time limit and is designed for students to complete in that window. The test can be taken on any device including mobile phones.
Is it suitable for Sec 3 or only Sec 4? +
The diagnostic is calibrated for Sec 3, Sec 4, and Sec 5 students across Pure (6092), Combined Science Chemistry (5086/5088), and N(A) Combined (5105 / 5107). When you register, you indicate your child's year and programme — the benchmarks adjust accordingly.
Does it cover Combined, Pure, and N(A)? +
Yes — the diagnostic covers topics common to all three: Pure Chemistry (6092), Combined Science Chemistry (5086/5088), and N(A) Combined Chemistry (5105 / 5107). When you indicate your child's programme, results are interpreted against the right syllabus standard.
When will we receive the report? +
You'll see the topic-by-topic summary instantly when the test finishes. We'll also email you a copy. If you'd like to go deeper, book a free 15-min Zoom consult with Ms Tan at cal.com/learnfromcher/consult — she'll prepare a polished 2-page report for that conversation, and she usually replies within the same day.
What happens if we book the consultation? Is there pressure to enrol? +
No pressure at all. The consult is an honest conversation: Ms Tan walks you through where your child stands and what she'd recommend. Many parents take a few days or weeks to decide. Whether you enrol or not, the report and recommendations are yours to keep.

Ready? The test takes ~20 minutes.

Free. No registration. Topic summary on screen + emailed copy. Optional free 15-min consult with Ms Hannah Tan.