Mr A's Chemistry Toolkit

Mr A’s KS4 Chemistry Toolkit - an all-in-one GCSE Chemistry revision companion. Explore clear topic notes, practise exam-style questions, and use our smart calculators.

Learn the whole KS4 / GCSE Chemistry course

Structured around the main KS4 Chemistry topics: Atomic Structure and the Periodic Table, Bonding and Structure, Quantitative Chemistry, Chemical Changes, Energy Changes, Rate of Reaction, Organic Chemistry, Chemical Analysis, Chemistry of the Atmosphere, and Using Resources.

Concise topic notes and key equations written clearly for 14–16 year olds. Handy summaries of key definitions, symbols, units, and required practical ideas.

Practise with questions and daily challenges

Build confidence with regular practice:

Topic-based quizzes with instant marking

A Daily Challenge mode to encourage little-and-often revision

XP and streaks to help you track progress over time

Questions are written in the style of real GCSE items without copying past papers

Smart Chemistry “Coach” tools

Interactive calculators that don’t just give answers — they help you set the chemistry up correctly.

Included Coaches:

Moles Coach – link mass, moles, Mr, concentration and volume

Concentration Coach – n = cV and solution calculations

Gas Volume Coach – relate moles to gas volume at room temperature

Balancing Equations Coach – step-by-step support for symbol equations

Rates Coach – explore factors affecting rate and collision frequency

Energy Changes Coach – endothermic vs exothermic reactions

Each tool:

Guides you to identify the unknown quantity

Checks inputs for realistic chemical values

Shows results clearly with correct units and notation

Study, revise, then check understanding

Use the tabs along the bottom to stay organised:

Home – KS4 Chemistry hub with quick tools and topic shortcuts

Study – clear notes and explanations by topic

Practice – quiz yourself by topic

Challenge – daily mixed practice with XP rewards

Tools – jump straight into Chemistry coaches when stuck

Now includes a Glossary of Key Chemistry Terms for quick reference.

Learn your way

Start wherever you need:

Read the notes

Try a short quiz

Use a Coach tool to break down tricky calculations

Designed for students and teachers

Mr A’s Chemistry Toolkit works well for:

Students revising independently at home

Quick worked examples and checks in lessons

Teachers setting focused practice or homework support

No account required. No adverts. No in-app purchases.

Just Chemistry.