IGCSE 0620 Exam Question Decoder Reactions & Stoichiometry

IGCSE Chemistry 0620 exam question decoder for chemical reactions and stoichiometry. Exam-style practice with command words, scaffolds, model answers with an English Lanugage glossary.

Lesson-ready IGCSE Chemistry 0620 Exam Question Decoder for learners. Scaffold exam-style questions on chemical reactions and stoichiometry with command word support, model answers and a glossary in English. Zero-prep, classroom-ready exam language support for IGCSE Chemistry 0620.

This teacher-facing pack gives you exam-style questions, sentence stems and worked solutions so learners can answer clearly in Chemistry exams on chemical reactions and stoichiometry. All questions are original, exam‑style items written for this resource and are not taken from or endorsed by any official past papers or exam boards.

Instead of losing marks on command words or exam phrasing, students plug their chemistry knowledge into structured frames to balance equations, use mole ratios, calculate mass and yield and explain results in academic English.

WHAT IS IT?
A 17-page professional PDF + PowerPoint, Google Slides and LMS set: IGCSE Chemistry 0620 Exam Question Decoder – Chemical Reactions & Stoichiometry. Scaffold exam-style questions, calculations and written explanations with an English Language Glossary.

Each page includes:

• A short Teacher Note or command word explanation.
• A clearly structured exam-style question with Core (★) or Challenge (★★) level.
• A scaffold (sentence stems, step frames or tables).
• “What the examiner wants” guidance and a model answer.
• Ideal for projecting, printing as worksheets, or targeted exam practice.

WHAT’S INCLUDED:

• Section A: balancing equations and state symbols.
• Section B: simple mole ratio calculations.
• Section C: mass, moles and percentage yield.
• Section D: mixed short questions on conservation of mass and limiting reactants.

BONUS CONTENT:

• Command word glossary in English.
• Key chemistry terms glossary
• Core (★) and Challenge (★★) difficulty markers, summary exam tips checklist.

HOW TEACHERS CAN USE THIS:

EAL FRIENDLY DESIGN:

• Simple, repeatable question layouts with clear scaffolds.
• Explicit “State / Describe / Explain / Calculate / Deduce” command word breakdowns.
• Reduced cognitive load: students focus on chemistry, not decoding exam language.

WORKS WELL FOR:

• English language learners
• Lower-literacy learners in mainstream Chemistry classes
• Students preparing for structured and extended calculation/explanation questions in IGCSE Chemistry 0620

Curriculum alignment

• UK KS3–KS4 Science – chemical reactions, quantitative chemistry, conservation of mass
• IGCSE Chemistry 0620 – Stoichiometry (Topic 4), equations, moles, mass and yield; chemical reactions
• Suitable support for Cambridge and similar syllabuses that require extended written and calculation responses in Chemistry