Practical

Notes on Planning for O-Level Chemistry Practicals

Posted on August 4, 2026August 4, 2026 by mibs 729

O LEVEL PURE CHEMISTRY

Paper 3 Practical — Planning (P)

Complete Student Notes, Strategies & Worked Example | 6092/03

Paper 3 40 marks | 1h 50 min

Planning (P) ~4–6 marks per question

Overall Paper 3 = 20% of O Level

Syllabus 6092 (Pure Chemistry)

Section 1: What is Planning in O Level Chemistry?

Planning questions test your ability to design a complete, logical chemical investigation from scratch. Unlike Biology, Chemistry planning is less about biological mechanisms and more about: choosing the right apparatus, using correct quantities with precise measurements, applying chemical knowledge (equations, molar calculations, expected observations), and showing how you would interpret results to reach a conclusion.

Chemistry Planning is different from Biology Planning: You must always include specific masses/volumes (with units), name the specific instrument used to measure each quantity, state expected observations, and show any necessary molar calculations. Vague answers like ‘add some acid’ score zero.

The Four Pillars of Every Chemistry Planning Answer

Pillar	What It Requires	Mark Value
1. Variables	State IV (what you change), DV (what you measure), and CVs (what you keep constant) with specific quantities	1 mark
2. Procedure	Numbered steps with: specific apparatus, specific masses/volumes, method of measurement, expected observations	1–2 marks
3. Calculations / Treatment of Results	Show how the measurements are used to calculate the answer or compare results, with equations and units	1–2 marks
4. Conclusion	State clearly how results are interpreted to answer the investigation question	1 mark

Key O Level Chemistry Rule: Always use mass, volume, or concentration — NEVER ‘amount’. Use specific instrument names: ‘electronic balance’, ‘measuring cylinder’, ‘gas syringe’, ‘burette’. Quantities must be specific and reasonable.

Section 2: The Three Types of Chemistry Planning Questions

O Level Chemistry planning questions fall into three broad types. Recognising the type immediately tells you what the DV is, what apparatus you need, and what your calculation/conclusion looks like.

Type A: Rate of Reaction Investigations

You investigate how a factor (temperature, concentration, surface area, catalyst) affects how fast a reaction proceeds.

Feature	Details
Typical IVs	Temperature / °C, concentration of acid / mol dm⁻³, particle size (powder vs chips), presence/absence of catalyst
Typical DVs	Time for reaction to complete (disappearing cross / colour change) / s; volume of gas collected / cm³ in fixed time; initial rate of gas production
Key CVs	Same mass/volume of reactant; same concentration of other reagent; same temperature (if not the IV); same total volume of solution
Measurement	Stopwatch for time; gas syringe for volume; electronic balance for mass
Conclusion	Lower time = higher rate. Higher volume of gas in fixed time = higher rate. Draw graph of rate vs IV; steeper gradient = greater effect.

Calculating rate: Rate = volume of gas (cm³) / time (s) OR Rate = 1 / time (s⁻¹). Use rate (not just time) as your DV when you want to show ‘how fast’.

The full set of notes, which includes sections such as Types of Chemistry Planning Questions, is available in hard copy for students who sign up for any of our regular practical lessons, Crash Courses or Mock Exams.

LOOKING FOR THE BEST PLACE TO DO YOUR SCIENCE PRACTICALS? JOIN US!

Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.

We provide A-Level / H2 / IP and O-Level Physics, Chemistry, Biology and Combined Science (Physics/Chemistry/Biology) Practical Training/Crash Course/Mock Exams for both local (eg. H2, Singapore-Cambridge) and international exams (CIE, Pearson Edexcel, IGCSE).

Why Choose Us?

Our teachers are very experienced, and we actually TEACH you good practical techniques.
We have been a one-stop comprehensive science practical centre providing solid practical training for ALL THREE sciences and for all levels and streams since 2017.
Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.
We have a structured practical training programme catering to the needs of both beginners and experienced students.
We have a small class size so that the teacher is able to observe the actions of each student more closely and demonstrate the correct practical techniques where and when necessary.
Many private schools trust us to prepare and conduct science practical training and assessment for their students, including structured training, mock exams and even actual CIE science practical exams.

For enquiries, contact 88765498 (Admin).

Our Main Practical Programmes:

A-LEVEL H2 PRACTICALS (Available Nov to Oct)

O-LEVEL PRACTICALS (Available Nov to Oct)

SEC 3 PRACTICALS (Available Nov to Jun)

PRACTICAL CRASH COURSES (Jun, July, Sep and Oct)

MOCK EXAMS FOR SCIENCE PRACTICAL (Apr to Oct)

Practical

Notes on Sources of Error in O-Level Chemistry Practicals

Posted on August 2, 2026August 4, 2026 by mibs 729

1. Answering a Source-of-Error Question

Give the one or two factors inherent to the procedure, not a general list.

Every answer has three parts: (i) the specific step and the physical or chemical reason the recorded quantity deviates from the true value; (ii) the quantity affected, stated as too high, too low, or inconsistent; (iii) a concrete precaution.

State the effect on the quantity actually recorded — a mass, a volume, a temperature, a time — not on the underlying chemistry itself. “The reaction is faster” is not an answer; “the time recorded is shorter than expected” is.

Rejected as “too general” unless further justified for the exact procedure:

Parallax error, without stating which scale and why it cannot be avoided here.
“Human error” or “random error”, without a stated cause.
Zero error — correctable by taring or calibration, not a genuine source of error.
“Apparatus not accurate enough”, without naming the reading it limits.
Anything solved by “being more careful” or “repeating the reading” — repetition addresses random error only, and most examined sources here are systematic.

1.1 Random and Systematic Error

Source of Error	Effect on the Reading / Result	Precaution / Improvement
Random error	Scatter in either direction from the limit of instrument resolution or from inexact repetition — e.g. titre volumes of 24.50, 24.15, 24.40 cm³ for repeats of the same titration.	Repeat until two titres agree within 0.10 cm³ (concordant results) and average these; take repeated mass or temperature readings where practicable.
Systematic error	A constant bias in one direction throughout the experiment, from a fault in method or apparatus — e.g. heat loss to the surroundings in every run, or an indicator that changes colour before the true end-point.	Not reduced by repetition. Identify the fault and correct the method (insulate, change indicator, use a control) or apply a calculated correction (e.g. a cooling correction).

1.2 Precision of Common Apparatus

Apparatus	Precision (Uncertainty)	How to Read / Use Correctly
Burette	± 0.05 cm³ (read to 2 d.p.)	Read the bottom of the meniscus at eye level for colourless solutions; for deeply coloured solutions (e.g. potassium manganate(VII)), read the top of the meniscus instead.
Pipette (25.0 cm³ / 20.0 cm³)	Fixed volume, delivered “to deliver”	Allow to drain fully; touch the tip against the vessel wall; do not blow out the last drop unless the pipette is marked to do so.
Measuring cylinder	± 0.5 cm³ (10–100 cm³ sizes)	Read at eye level to the bottom of the meniscus; select the smallest cylinder that holds the required volume.
Thermometer (liquid-in-glass)	± 0.5 °C	Read at eye level; keep the bulb fully immersed and clear of the container wall; allow time to reach a steady reading.
Digital stopwatch	± 0.01 s (device); human reaction time ≈ 0.2–0.3 s dominates	Start and stop at a clearly defined visual or colour-change cue; where the cue is subjective, use the same observer for all repeats.
Electronic (top-pan) balance	± 0.01 g	Tare before every measurement; close balance doors/draught shields if fitted; avoid draughts from open windows or fans.
Gas syringe	± 0.5 cm³, with plunger friction as an added source of lag	Check the plunger moves freely before use; keep the syringe horizontal to avoid its own weight affecting the plunger.

2. Volumetric Analysis (Titration)

MₐVₐ / MᵦVᵦ = x / y, from the mole ratio xA + yB → C + D; used to find an unknown concentration.

Source of Error	Effect on the Reading / Result	Precaution / Improvement
Indicator chosen does not change colour sharply at the equivalence point of this acid–base pair (e.g. phenolphthalein used with a weak base–strong acid pair).	The volume of titrant recorded is too high or too low, giving a concentration that is too low or too high.	Choose an indicator whose colour-change range brackets the equivalence pH of this specific reaction; where the change is still not sharp, verify the end-point with a pH meter or data logger.
Too many drops of indicator added.	Excess indicator itself reacts with a small amount of titrant, so a larger volume of titrant is recorded than actually required by the analyte.	Add only 2–3 drops of indicator.
The titrant is a coloured solution (e.g. potassium manganate(VII)), so the meniscus is difficult to locate against the burette scale.	The initial or final burette reading is misjudged, giving an inaccurate titre.	Read the level at the top of the meniscus instead of the bottom, and take the reading against a white card held behind the burette.
An air bubble is trapped in the burette tip below the tap at the start of titration.	The bubble later escapes during titration and is counted as if it were titrant delivered, so the titre recorded is too high.	Run liquid through the tip before the initial reading to expel any air bubble, and check the tip is full before recording the initial volume.
The pipette, burette, or conical flask was rinsed with water only, and retains residual water that dilutes the solution added.	The concentration of the solution actually delivered is lower than intended, and calculated concentrations are inconsistent.	Rinse the pipette and burette with the solution they are about to hold (not water alone); the conical flask may be rinsed with water only, since the amount of analyte placed in it is unaffected by dilution.
The overshoot past the true end-point (one drop too many) is a fixed volume that is a larger fraction of a small titre than of a large one.	Percentage error in the titre is largest for reactions requiring a small volume of titrant.	Where possible, choose concentrations of analyte and titrant that require titre volumes in the region of 20–30 cm³, so a one-drop overshoot is a small percentage of the total.

The full set of notes, which includes sections such as Sources of Error by Practical Topic is available in hard copy for students who sign up for any of our regular practical lessons, Crash Courses or Mock Exams.

LOOKING FOR THE BEST PLACE TO DO YOUR SCIENCE PRACTICALS? JOIN US!

Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.

Why Choose Us?

Our teachers are very experienced, and we actually TEACH you good practical techniques.
We have been a one-stop comprehensive science practical centre providing solid practical training for ALL THREE sciences and for all levels and streams since 2017.
Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.
We have a structured practical training programme catering to the needs of both beginners and experienced students.
We have a small class size so that the teacher is able to observe the actions of each student more closely and demonstrate the correct practical techniques where and when necessary.
Many private schools trust us to prepare and conduct science practical training and assessment for their students, including structured training, mock exams and even actual CIE science practical exams.

For enquiries, contact 88765498 (Admin).

Our Main Practical Programmes:

A-LEVEL H2 PRACTICALS (Available Nov to Oct)

O-LEVEL PRACTICALS (Available Nov to Oct)

SEC 3 PRACTICALS (Available Nov to Jun)

PRACTICAL CRASH COURSES (Jun, July, Sep and Oct)

MOCK EXAMS FOR SCIENCE PRACTICAL (Apr to Oct)

Topics Tested in Past O-Level Physics Paper 3 Practical Exam

Topics Tested in Past O-Level Chemistry Paper 3 Practical Exam

Topics Tested in Past O-Level Biology Paper 3 Practical Exam

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O LEVEL SCIENCE PRACTICAL BASIC TRAINING LAB SESSIONS – SCHEDULE FOR JUL-AUG 2026

Posted on June 28, 2026July 4, 2026 by mibs 729

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Pure Chemistry

Notes on O-Level Chemistry Titration

Posted on May 30, 2026July 7, 2026 by mibs 729

What is Titration?

Titration is a laboratory method to determine the concentration or volume of an acid or alkali by reacting it with a solution of known concentration.

It is based on the idea of neutralisation:

Acid + Base → Salt + Water

Example:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2 H₂O

1. Key Definitions

Term	Meaning
Titration	Method to find an unknown concentration using neutralisation
Titre	Volume delivered from the burette
End-point	Point where indicator changes colour
Concordant results	Titres close to each other (usually within 0.10–0.20 cm³)
Standard solution	Solution with known concentration
Neutralisation	Acid reacts with alkali to form salt + water

SEAB commonly expects burette readings to the nearest 0.05 cm³ and concordant titres within about 0.20 cm³.

2. Apparatus and Their Functions

(a) Burette

Holds the solution added during titration
Usually 50.0 cm³
Used for variable volumes
Read to 2 decimal places
Precision: nearest 0.05 cm³

Important:

Scale goes from top to bottom
0 cm³ at the top
50 cm³ at the bottom

Common mistakes

❌ Reading from top incorrectly
❌ Not removing air bubbles
❌ Reading meniscus wrongly

(b) Pipette

Measures a fixed volume
Usually 25.0 cm³
More accurate than measuring cylinder

Important:

Use a pipette filler
Never suck by mouth

(c) Conical Flask

Contains solution being analysed
Easy to swirl without spilling

(d) White Tile

Helps observe colour change clearly

(e) Indicator

Substance that changes colour near end-point

Common indicators:

Methyl orange
Phenolphthalein

3. Indicator Colours

Methyl Orange

In Acid	Neutral	In Alkali
Red	Orange	Yellow

Typical colour change in titration

Alkali → acid added:
- Yellow → orange

Phenolphthalein

In Acid	In Alkali
Colourless	Pink

Typical colour change

Alkali → acid added:
- Pink → colourless

4. Choosing the Correct Indicator

For O-Level:

Strong acid + strong alkali:
- Either methyl orange or phenolphthalein works

Examiner favourites

Methyl orange often used in school practicals
Phenolphthalein sometimes tested

Wide-range indicators are unsuitable because colour change is not sharp enough.

5. Step-by-Step Titration Procedure

Step 1 — Rinse apparatus

Burette

Rinse with distilled water
Then rinse with solution going inside

Pipette

Rinse with solution to be pipetted

Conical flask

Rinse with distilled water only

Step 2 — Fill burette

Use funnel
Remove funnel afterwards
Ensure no air bubbles
Record initial reading

Step 3 — Pipette solution

Pipette exactly 25.0 cm³
Transfer into conical flask

Step 4 — Add indicator

Add 2–3 drops only

Too much indicator causes error.

Step 5 — Perform rough titration

Add solution quickly while swirling
Stop when colour changes

Step 6 — Accurate titration

Near end-point:

Add solution drop by drop
Swirl continuously

Step 7 — Record final reading

Calculate:

Titre = Final burette reading – Initial burette reading

Step 8 — Repeat

Repeat until:

Two titres are concordant

Typical acceptable difference:

≤ 0.10 cm³
Sometimes ≤ 0.20 cm³ in practical guidance

6. How to Read the Burette Correctly

Read at eye level

To avoid:

Parallax error

Read bottom of meniscus

For colourless solutions:

Read lowest point of curve

Record to 2 decimal places

Correct:

24.50 cm³
18.05 cm³

Wrong:

24.5
18.053

7. Concordant Results

Meaning

Titres close together.

Example:

Trial	Titre/cm³
1	24.80
2	24.75
3	24.85

Trials 2 and 3 are concordant.

Average titre

Use only concordant values.

Example:

Average titre = 24.75 + 24.852

8. Titration Calculations

This is the MOST tested section.

Step-by-Step Calculation Method

Step 1 — Write balanced equation

Example:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2 H₂O

Step 2 — Convert volume to dm³

1 dm³ = 1000 cm³

Example:

25.0 cm³ = 0.0250 dm³

Step 3 — Use mole formula

n = cV

Where:

n = moles
c = concentration
V = volume in dm³

Step 4 — Use mole ratio

From balanced equation.

Example:

1 mol H₂SO₄ reacts with 2 mol NaOH

Step 5 — Find unknown concentration

Rearrange:

c = nv

9. Worked Example

Question

25.0 cm³ of sodium hydroxide reacted with 20.0 cm³ of 0.100 mol/dm³ sulfuric acid.

Find concentration of sodium hydroxide.

Step 1

Balanced equation:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2 H₂O

Step 2

Moles of sulfuric acid:

n = cV = 0.100 x 0.0200

= 0.00200 mol

Step 3

Use ratio:

1:2

NaOH moles:

= 0.00400 mol

Step 4

Volume of NaOH:

25.0 cm³ = 0.0250 dm³

Step 5

Concentration:

c =0.004000.0250

= 0.160 mol/dm³

10. Sources of Error

Error	Effect
Overshooting end-point	Titre too large
Air bubble in burette	Wrong titre
Parallax error	Wrong reading
Not rinsing apparatus properly	Dilution error
Adding too much indicator	Affects result

11. Improvements

Problem	Improvement
Difficult to see colour	Use white tile
Overshooting	Add dropwise near end-point
Human judgement error	Repeat titrations
Parallax	Read at eye level

12. Practical Exam Tips

Before starting

✔ Check burette for air bubbles
✔ Remove funnel
✔ Record initial reading properly

During titration

✔ Swirl continuously
✔ Wash flask walls with distilled water
✔ Slow down near end-point

Near end-point

✔ Add one drop at a time
✔ Watch carefully for permanent colour change

13. Colour Change Tips

Methyl orange

Yellow → orange = end-point
Red means overshot

Phenolphthalein

Pink → colourless = end-point

14. Common Exam Questions

Describe how to carry out a titration

Must mention:

Pipette 25.0 cm³ into flask
Add indicator
Fill burette
Record readings
Add solution slowly with swirling
End-point colour change
Repeat for concordant results

Why use conical flask?

Allows swirling without spilling.

Why use pipette instead of measuring cylinder?

More accurate.

Why remove funnel?

Drops may enter burette and change reading.

Why wash flask sides with distilled water?

Ensures all reactants react.

15. Must-Memorise Values

Item	Value
Pipette reading	1 d.p.
Burette reading	2 d.p.
Burette precision	0.05 cm³
Concordant titres	within 0.10–0.20 cm³
Pipette common volume	25.0 cm³
Burette common volume	50.0 cm³

16. Ultimate Exam Checklist

Before practical ends:

✅ Initial and final readings recorded
✅ 2 decimal places used
✅ Concordant results obtained
✅ Average titre calculated correctly
✅ Units included
✅ Balanced equation written
✅ Mole ratio used correctly
✅ Volume converted to dm³

17. High-Yield Mistakes Students Make

❌ Forgetting to convert cm³ to dm³
❌ Using wrong mole ratio
❌ Reading top of meniscus
❌ Overshooting endpoint
❌ Averaging rough titre with accurate titres
❌ Forgetting units
❌ Recording burette reading with 1 d.p.

18. Fast Memory Summary

TITRATION FORMULA FLOW

Volume → dm³ → n = cV → mole ratio → c = nv

19. What Cambridge Examiners Look For

Accurate technique
Proper burette readings
Correct significant figures
Concordant titres
Proper mole calculations
Clear practical method

LOOKING FOR THE BEST PLACE TO DO YOUR SCIENCE PRACTICALS? JOIN US!

Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.

Why Choose Us?

Our teachers are very experienced, and we actually TEACH you good practical techniques.
We have been a one-stop comprehensive science practical centre providing solid practical training for ALL THREE sciences and for all levels and streams since 2017.
Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.
We have a structured practical training programme catering to the needs of both beginners and experienced students.
We have a small class size so that the teacher is able to observe the actions of each student more closely and demonstrate the correct practical techniques where and when necessary.
Many private schools trust us to prepare and conduct science practical training and assessment for their students, including structured training, mock exams and even actual CIE science practical exams.

For enquiries, contact 88765498 (Admin).

Our Main Practical Programmes:

A-LEVEL H2 PRACTICALS (Available Nov to Oct)

O-LEVEL PRACTICALS (Available Nov to Oct)

SEC 3 PRACTICALS (Available Nov to Jun)

SEC 1-2 PRACTICALS (Available Nov to Jun)

P3 – P6 PRACTICALS (Available Nov to Jun)

PRACTICAL CRASH COURSES (Jun, July, Sep and Oct)

MOCK EXAMS FOR SCIENCE PRACTICAL (Apr to Oct)

March Holiday Science Enrichment (P4 – S2)

EDUCATIONAL ADVICE

Creating, Preparing and Sustaining a Science Practical Training Programme for the A and O levels.

Posted on May 14, 2026July 4, 2026 by mibs 729

This page is still under construction.

CREATING A SCIENCE PRACTICAL TRAINING PROGRAMME

Decide which examination system (Singapore-Cambridge, CIE etc.) you wish to train students for.
Decide which level(s) (A or O) and which subjects (Biology, Chemistry etc.) for your practical programme.
Read thoroughly the science practical syllabus for each level and subject. Take note of the Assessment Objectives, Exam Paper format and the list of apparatus and chemicals needed for each level and subject.
Choose a suitable location, building and unit for your science lab. Please note that for Biology and Chemistry, your lab must have windows which can be opened for ventilation purposes.
Install fire safety systems and devices in your lab, as well as subject-specific safety equipment such as chemical shower facility for chemistry.
Create all the worksheets (at least 10), prep lists and suggested answers for subject and level.
Purchase and store all the apparatus and chemicals you will need.
Equip your lab with the right furniture and standard bench reagents and devices such as retort stands and portable burners.
Hire Lab Assistants to help you manage the lab.
Hire teachers or tutors who are comfortable with conducting lab sessions.

PREPARING A SCIENCE EXPERIMENT

About two weeks before the date of the expt, scrutinize its prep list and check for items which you may need to purchase immediately, as suppliers may take a week to send them.
Lab Asst to prepare all the apparatus and chemicals according to specifications, such as quantity, mass or concentration of a substance, including spare apparatus and chemicals. Every bottle has to be labelled.
Lab Asst to layout all the items and chemicals for each student.
Lab Asst to ensure that all the bench reagents and consumables have been topped up.
All the lab worksheets, notes and answers must be printed.
At the end of the experiment, all the used test-tubes, bottles, beakers etc. have to be washed and dried, and other apparatus have to be stored.

SUSTAINING A SCIENCE PRACTICAL TRAINING PROGRAMME

Weekly schedules have to be updated to cater to various student groups, subjects and levels.
Lab rooms have to be assigned to different groups or experiments for laying out of apparatus.
Enough teachers and lab assistants have to be deployed throughout the week; while several experiments are being conducted, future experiments have to be prepared.
Planning must include disposal of waste chemicals and broken glass, and repair or disposal of spoilt items.
Consumables must be ordered before the current ones run out.
Worksheets and notes may have to be updated if there is a change of syllabus, or a change in question trends.
If you are a tuition centre, your practical training programme needs to be marketed via ads in social media or mass media.

To be continued …….

Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.

If you are a private school, tuition centre or private study group with no science lab, or you are a tutor who needs a science lab, you can

(A) COLLABORATE with us to provide regular or ad hoc science practical sessions for your students;

(B) OUTSOURCE your whole science practical programme to us, including topical training (which we can plan together), practical tests, revision sessions, prelim exam, and mock exams.

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(D) RENT our lab, apparatus and materials for the conduct of your own mid-year, end-of-year, prelim or mock practical exams or even the actual CIE practical exams (if you are a Cambridge-registered school).

Needless to say, we are currently working with a number of private schools to provide them with practical training and practical exams, and we have started planning for practical programmes for 2027, some of which will commence in Nov 2026. Thus if you would like to discuss with us about science practical programmes for your school or tuition centre in 2027, kindly meet us as soon as possible. Thank you!

We can provide science practicals for ALL THREE SCIENCES for the following levels:

1) A-LEVEL (H2 or CIE or Pearson Edexcel) / JC1-JC2 / IP Y5-Y6 / Grades 11 to 12.

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Special QA Revision

Posted on October 31, 2024February 14, 2026 by admin

These Special QA Revision sessions are meant for participants of our QA Competition:

Topics which will be covered in these 1.5 hr sessions:

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Science (Chem)

SEC 3 SCIENCE (CHEMISTRY) TOPICAL RELEARNING

Posted on September 23, 2023October 27, 2023 by admin

These are private 1-1 individual lessons.

Start Date: YOUR CHOICE

Location: Blk 644, Bukit Batok Central, #01-68, S(650644).

Focus: CONCEPTUAL UNDERSTANDING & APPLICATION OF SKILLS

Format: Teaching + Worksheets + Discussions

Target Group: Current S3 students who obtained a grade of B4 or lower in their Sec 3 Science(Chemistry) SA2/EOY/Final Exam.

Days, Dates and Time slots : To be agreed upon.

Suggested Topics:

CHEMICAL BONDING
CHEMICAL EQUATIONS
MOLE CONCEPT
CHEMICAL CALCULATIONS
ACIDS & BASES
SALTS

Fee: $50 per hour only.

$30 registration fee.

Background of Tutor:

The tutor is a RI & RJC alumnus and a NIE-trained graduate (NUS) ex-teacher who has been teaching Chemistry for more than 8 years.

To register, sms <Student Name><S3SCRL> to 97860411.

For any queries, you may also talk directly to the tutor at 97860411.

If instead you are looking for SEC 4 HEAD START programs, click on the link below:

HEAD START PROGRAMS (NOV-DEC)

SCIENCE PRACTICALS:

O-LEVEL PRACTICALS

IGCSE PRACTICALS

INTEGRATED PROGRAMME (IP) PRACTICALS

SEC 3 PRACTICALS

IB DIPLOMA INTERNAL ASSESSMENT FOR SCIENCE

Posted on August 19, 2023June 9, 2025 by admin

The Internal Assessment (IA) is a compulsory task for IB students in the Diploma Programme (DP). It is weighted to about 20% of the overall marks for a Science subject.

The marking criteria of the Internal Assessment are based on the Evaluation Criteria, which consists of different parts to be evaluated, namely: Personal engagement (i.e. motivation), research, data analysis, conclusion and evaluation, presentation.

For Science subjects, the IA project of a student is normally an experiment to determine the value of a particular variable, or to investigate the relationship between two or more variables.

We have been giving lab support (apparatus, materials, chemicals etc.) to IB Diploma science students to complete their IA for Biology, Chemistry and Physics since 2021.

If you need our lab support for your IA, please book our labs from Nov to Feb which are our non-peak periods. You may contact us via the contact numbers below:

Singapore Learner @ Bukit Batok

Blk 644, Bukit Batok Central, #01-68. S(650644).

Tel: +(65) 6569 4897, +(65) 86765498 (WHATAPPS)

Email: singaporelearner@gmail.com

If you wish to visit us, kindly call or sms first. Thank you.

Practical

CIE AND IGSCE SCIENCE PRACTICALS

Posted on August 19, 2023November 22, 2024 by admin

LOOKING FOR THE BEST PLACE TO DO YOUR SCIENCE PRACTICALS? JOIN US!

Why Us?

Our teachers are highly qualified and very experienced, and we actually TEACH you good practical techniques.
We have been a one-stop comprehensive science practical centre providing solid practical training for ALL THREE sciences and for all levels and streams since 2017.
Our laboratory apparatus are exam-grade and the same as those used in MOE schools and our chemicals are all NEA-approved.
We have a structured practical training programme catering to the needs of both beginners and experienced students.
We have a maximum class size of just 5 students! Yes just 5 students at most, so that the teacher is able to observe the actions of each student more closely and demonstrate the correct practical techniques where and when necessary.

Chemistry Practical

You may need science practical lessons if you are a private candidate who needs a science lab and apparatus as well as practical coaching, or you are a school candidate who needs more practical training to get top grades.

School candidates who need more FULL PRACTICAL PRACTICE are also welcome, as you seldom get to complete a full practical in school, mainly due to lack of curriculum time.

If you are a private school or tutor who needs a science lab or practical training for your students, you are also advised to contact us early to work out the details such as course curriculum, lab worksheets, scheduling and fee matters.

For details on Practical Courses, Mock Exams or Schedules, kindly click on any of the following links relevant to the exam and level you will be doing:

To proceed, please click on one of the following:

Tel: +(65) 6569 4897, +(65) 88765498 (WHATAPPS) http://wa.link/w0xxk2

Email: singaporelearner@gmail.com

If you wish to visit us, kindly call or sms first. Thank you.