Teach one of the key electrolysis topics in AQA GCSE Chemistry with this complete, classroom-ready lesson covering the principles of electrolysis, ion movement, industrial applications and the extraction of aluminium using the Hall-Héroult process.

The lesson develops pupils’ understanding of electrolysis from first principles before applying their knowledge to molten ionic compounds, aqueous solutions and real industrial processes. Pupils explore how ions move during electrolysis, learn the difference between oxidation and reduction using OIL RIG, predict products formed at each electrode, and investigate why aluminium extraction is both economically expensive and environmentally significant.

Three differentiated worksheets are included:

Support – Structured activities introducing the Hall-Héroult process, ion movement, cryolite, carbon anodes, environmental impacts and aluminium extraction, with scaffolded questions, word banks and knowledge checks.
Core – Pupils explain the extraction of aluminium, evaluate the economic and environmental impacts of industrial electrolysis, compare extraction with recycling, and complete extended written responses alongside GCSE-style knowledge checks.
Challenge – Higher-level tasks requiring pupils to construct half-equations, evaluate the sustainability of aluminium extraction, analyse the role of cryolite, consider future developments such as inert anodes and renewable energy, and apply advanced chemical reasoning throughout.

The accompanying PowerPoint includes retrieval practice, key vocabulary, teacher modelling, worked examples using molten lead bromide and molten sodium chloride, electrolysis of aqueous copper chloride, industrial applications, aluminium extraction, common misconceptions, silent independent practice, exam-style questions and review activities. Ideal for first teaching, revision or exam preparation, this resource combines secure scientific knowledge with application, analysis and evaluation in a fully differentiated lesson.

What’s Included;
Fully editable PowerPoint presentation
Support worksheet with answers
Core worksheet with answers and extended evaluation
Challenge worksheet with answers
Retrieval starter activities
Key vocabulary
Teacher modelling
Worked electrolysis examples
Aluminium extraction case study
Independent practice tasks
Exam-style six-mark question
Review and consolidation activities

Perfect as a complete classroom lesson, GCSE revision lesson, cover lesson or as part of the Chemical Changes unit for AQA GCSE Chemistry (8462).

Keywords;

GCSE Chemistry, AQA Chemistry, Electrolysis, Aluminium Extraction, Hall-Héroult Process, Chemical Changes, Electrolytes, Cathode, Anode, OIL RIG, Redox, Cryolite, GCSE Science, Chemistry Lesson, GCSE Chemistry Worksheets

Image Disclaimer;

Images included within the teaching resources have been sourced from publicly available educational and royalty-free sources and are not owned by the author.