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chemistry, crafted for the exam.

Notes that follow your syllabus statement by statement — from IGCSE and the IB MYP through AS and A Level to the IB Diploma.

Choose your course How to use the notes

the idea

every page begins with the syllabus. the definition, worded the way examiners reward it. the trap, named before you fall in. the model, placed where the idea begins. this is chemistry, made clear.

01 · courses

choose your course.

Five sets of notes, each written to its own syllabus and labelled so you always know which material is yours to learn.

Cambridge IGCSE™ 0620

i.

IGCSE Chemistry

Examinations 2026–2028. All twelve topics, with Core and Supplement clearly marked, and Paper 2, 4 and 6 practice with mark-scheme answers.

  • 12topics
  • 311questions
  • 44models
Open IGCSE

IB Middle Years Programme

ii.

MYP Chemistry

Years 4–5 eAssessment topics, every objective tagged to criteria A–D, with examination practice and examiner observations.

  • 8chapters
  • 91questions
  • 34models
Open MYP

Cambridge AS & A Level 9701

iii.

AS & A Level Chemistry

AS Level topics 1–22 and A Level topics 23–37, each page mapped to its 9701 learning outcomes.

  • 36topics
  • 184worked examples
  • 343models
AS Level A Level

IB Diploma Programme

iv.

IB Chemistry

First assessment 2025. Structure 1–3 and Reactivity 1–3, with SL and HL marked on every section and examiner feedback from subject reports.

  • 22sub-topics
  • 507questions
  • 52models
Open IB DP

02 · why it works

built for the marks.

Organised around what an examination actually asks of you, not just around what a textbook covers.

  • 01

    Mapped to your syllabus

    Every section carries its syllabus code, and Core/Supplement, SL/HL or criteria A–D labels show exactly what is yours to learn.

  • 02

    The wording that scores

    Definitions to state exactly, and mark-scheme language taken from published marking notes.

  • 03

    Traps, named early

    Common errors and misconceptions from examiner reports, each with the correct reasoning beside it.

  • 04

    Worked, step by step

    Calculations set out line by line, with units and significant figures, the way a full-mark answer is written.

  • 05

    See it, then change it

    Interactive models and animations sit inside the section that introduces each idea.

  • 06

    Practice with answers

    Past-paper questions and self-tests after the topics they test, with mark-scheme answers.

03 · how to study

read. predict. check.

A routine that turns reading into marks.

  1. Read the section

    Start with the learning objectives, then read the explanation before you touch any model.

  2. Predict, then test

    Change one control at a time and say what will happen before you look.

  3. Learn the exact words

    Write the definitions and mark-scheme phrases into your own notes, and reread the traps.

  4. Attempt, then check

    Answer each question before opening the answer, then mark yourself against the mark scheme.

04 · callout key

one language, every page.

The same colours, icons and labels are used across every course.

Learning objectives

What the syllabus asks you to be able to do.

Definition

Wording to learn and reproduce exactly.

Worked example

A full method, set out as a model answer.

Practical work

Methods, apparatus and the skills practical papers test.

Exam tip and examiner feedback

What examiners reward and where candidates lose marks.

Mark-scheme language

Phrases taken from published marking notes.

Common trap or misconception

An error to avoid, with the correct idea.

How to think

The reasoning behind a method, so it transfers to new questions.

Practice questions

Quick checks and past-paper questions with answers.

05 · all topics

go straight there.

Every page, by course.

0620IGCSE Chemistry
  1. Topic 1States of matter
  2. Topic 2Atoms, elements and compounds
  3. Topic 3Stoichiometry
  4. Topic 4Electrochemistry
  5. Topic 5Chemical energetics
  6. Topic 6Chemical reactions
  7. Topic 7Acids, bases and salts
  8. Topic 8The Periodic Table
  9. Topic 9Metals
  10. Topic 10Chemistry of the environment
  11. Topic 11Organic chemistry
  12. Topic 12Experimental techniques and chemical analysis
MYPMYP Chemistry
  1. Start hereCriteria-based learning
  2. Topic 1Periodic table
  3. Topic 2IUPAC naming and classification
  4. Topic 3The atmosphere
  5. Topic 4Matter
  6. Topic 5Pure and impure substances
  7. Topic 6Bonding
  8. Topic 7Types of chemical reaction
9701AS Level Chemistry
  1. Topic 1Atomic structure
  2. Topic 2Atoms, molecules and stoichiometry
  3. Topics 3 & 4Chemical bonding and states of matter
  4. Topic 5Chemical energetics
  5. Topic 6Electrochemistry
  6. Topic 7Equilibria
  7. Topic 8Reaction kinetics
  8. Topic 9The Periodic Table: chemical periodicity
  9. Topic 10Group 2
  10. Topic 11Group 17
  11. Topic 12Nitrogen and sulfur
  12. Topic 13An introduction to AS Level organic chemistry
  13. Topic 14Hydrocarbons
  14. Topic 15Halogen compounds
  15. Topic 16Hydroxy compounds
  16. Topic 17Carbonyl compounds
  17. Topic 18Carboxylic acids and derivatives
  18. Topic 19Nitrogen compounds
  19. Topic 20Polymerisation
  20. Topic 21Organic synthesis
  21. Topic 22Analytical techniques
9701A Level Chemistry
  1. Topic 23Chemical energetics
  2. Topic 24Electrochemistry
  3. Topic 25Equilibria
  4. Topic 26Reaction kinetics
  5. Topic 27Group 2
  6. Topic 28Chemistry of transition elements
  7. Topic 29An introduction to A Level organic chemistry
  8. Topic 30Hydrocarbons (A Level)
  9. Topic 31Halogen compounds (A Level)
  10. Topic 32Hydroxy compounds (A Level)
  11. Topic 33Carboxylic acids and derivatives (A Level)
  12. Topic 34Nitrogen compounds (A Level)
  13. Topic 35Polymerisation (A Level)
  14. Topic 36Organic synthesis (A Level)
  15. Topic 37Analytical techniques (A Level)
IB DPIB Diploma Chemistry
  1. S1.1 · S1.2Introduction to the particulate nature of matter · The nuclear atom
  2. S1.3Electron configurations
  3. S1.4Counting particles by mass: the mole
  4. S1.5Ideal gases
  5. S2.1The ionic model
  6. S2.2Part A The covalent model
  7. S2.2Part B The covalent model
  8. S2.3The metallic model
  9. S2.4From models to materials
  10. S3.1The periodic table: classification of elements
  11. S3.2Part A Functional groups: classification of organic compounds
  12. S3.2Part B Stereochemistry and spectroscopic identification
  13. R1.1Measuring enthalpy changes
  14. R1.2Energy cycles in reactions
  15. R1.3Energy from fuels
  16. R1.4Entropy and spontaneity
  17. R2.1How much? The amount of chemical change
  18. R2.2How fast? The rate of chemical change
  19. R2.3How far? The extent of chemical change
  20. R3.1Proton transfer reactions
  21. R3.2Electron transfer reactions
  22. R3.3 · R3.4Electron sharing and electron-pair sharing reactions