Free GCSE & A-Level Chemistry resources to help you ace your chemistry exams.
Concise notes, worked examples, interactive activities, and videos aligned to UK exam boards. No logins. No paywalls.

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GCSE Chemistry
Clear notes, practice questions, quizzes, and interactive checks for Higher & Foundation tiers.
ASAS Chemistry
Clear and concise notes on physical, inorganic, and organic topics, practice questions, quizzes and interactive content.
A2A2 Chemistry
Clear and concise notes on physical, inorganic and organic topics, practice questions, quizzes and interactive content.
Popular topics
Frequently visited pages across GCSE and A-Level.
Interactive tools & quizzes
Recent page updates
Enrichment activity (GCSE)
The dangers posed by radon gas and how to avoid the risks from this radioactive noble gas.
Trends and patterns in the ionisation energies for the period 3 elements (A-level)
Interactive activities to explain shielding and trends in the ionisation energies.
New page to discuss the trends and patterns in the melting points and structures of the period 3 elements (A-level)
Clear notes and enrichment activities on the period 3 elements and the trends in their melting points and structures.
The Aufbau Principle (A-level)
Updated page to help explain how to work out electron configurations.
Electron configurations (A-level)
Interactive activity to help you work out the electronic configurations for the first 30 elements.
% Composition by mass (GCSE)
Worked examples and embedded self-check activities..
What’s new
Freshly added or updated resources.
- New GCSE page on the dangers of radon gas. This page has been added as an enrichment activity.
- New: GCSE section on quantitative chemistry, e.g. interactive atom economy & percentage yield activities.
- Updated: GCSE Section on metals and their reactions has been updated with interactive quizzes and activities.
- A2 aromatic chemistry section has had an update with more interactive content and questions.
- Updated AS chemistry topics on ionisation energies and the Aufbau Principle.
- New and updated page on the blast furnace- interactive quiz added.
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