Edexcel International AS Level Biology 3 (IAL) WBI13 past papers & revision

WBI13

Jun 2026

Edexcel · with mark scheme

WBI13

Jan 2026 · Variant A

Edexcel · with mark scheme

WBI13

Jan 2026

Edexcel · with mark scheme

WBI13

Nov 2025 · Variant R

Edexcel · with mark scheme

WBI13

Nov 2025

Edexcel · with mark scheme

WBI13

Jun 2025

Edexcel · with mark scheme

WBI13

Jan 2025

Edexcel · with mark scheme

WBI13

Nov 2024

Edexcel · with mark scheme

WBI13

Jun 2024

Edexcel · with mark scheme

WBI13

Jan 2024

Edexcel · with mark scheme

WBI13

Nov 2023

Edexcel · with mark scheme

WBI13

Jun 2023

Edexcel · with mark scheme

Apparatus, Measurement & Uncertainty

Notes, flashcards & questions

Variables, Controls & Fair Testing

Notes, flashcards & questions

Measuring Apparatus, Uncertainty & Errors

Notes, flashcards & questions

Planning & Evaluating an Investigation

Notes, flashcards & questions

Processing Results & Drawing Conclusions

Notes, flashcards & questions

Resolution, Precision & Significant Figures

Notes, flashcards & questions

Making Solutions: Concentration, Dilution & Serial Dilutions

Notes, flashcards & questions

Biological Techniques: Staining, Sectioning & Slide Preparation

Notes, flashcards & questions

Safety, Risk Assessment & Ethics

Notes, flashcards & questions

Writing a Hypothesis & Choosing a Method

Notes, flashcards & questions

Recording Data: Tables, Units & Repeats

Notes, flashcards & questions

9. Practical Skills in Biology I

Notes, flashcards & questions

Graphs: Choosing, Drawing & Reading Them

Notes, flashcards & questions

Anomalies, Random & Systematic Error

Notes, flashcards & questions

Reliability, Validity & Suggesting Improvements

Notes, flashcards & questions