Edexcel International A Level
Edexcel IAL Biology and Chemistry notes by unit
The IAL is modular: three AS units, three A2 units per subject. Pick your stage below to see exactly which unit codes each book covers.
Biology
WBI11–WBI16
- WBI11 Molecules, Diet, Transport and Health
- WBI12 Cells, Development, Biodiversity and Conservation
- WBI13 Practical Skills in Biology I
- WBI14 Energy, Exercise and Coordination
- WBI15 Respiration, Internal Environment, Coordination and Gene Technology
- WBI16 Practical Skills in Biology II
Chemistry
WCH11–WCH16
- WCH11 Structure, Bonding and Introduction to Organic Chemistry
- WCH12 Energetics, Group Chemistry, Halogenoalkanes and Alcohols
- WCH13 Practical Skills in Chemistry I
- WCH14 Rates, Equilibria and Further Organic Chemistry
- WCH15 Transition Metals and Organic Nitrogen Chemistry
- WCH16 Practical Skills in Chemistry II
See how precise biological terms turn understanding into marks in Cambridge IGCSE and Edexcel International A Level Biology. The video shows how concise notes, highlighted key terms, flashcards and quizzes help you build stronger past-paper answers.
The books
Two subjects, organised by unit code
Want guided teaching too?
Every eBook is a complete standalone revision resource. For some stages, a complete course adds video lessons, solved past papers, practical-paper training and progress support.
- AS Biology — Explore the AS Biology course
- A2 Biology — Explore the A2 Biology course
- AS Chemistry — Explore the AS Chemistry course
- A2 Chemistry — guided course coming soon; the A2 solved past papers are available now.
Still sitting IGCSE first?
Cambridge and Edexcel IGCSE Biology and Chemistry notes, matched to your board.
