Can You Undo It? Reversible and Irreversible Changes | Explanation Writing Pack | Year 5/6

This fully resourced two-week explanation writing unit explores the science of Reversible and Irreversible Changes. Pupils will discover how materials behave when they are melted, frozen, burned, mixed, or cooked—and whether those changes can be reversed. Through this engaging science context, learners will develop the ability to explain scientific processes clearly, confidently, and with purpose.

Designed around Rosenshine’s Principles of Instruction, the unit builds writing fluency and subject knowledge through high-quality modelling, structured practice, and grammar-rich teaching. It is ideal for cross-curricular writing or as a standalone non-fiction unit.

This pack includes:

• 10 detailed lessons with clear learning objectives and teacher modelling
• A two-page WAGOLL (model text) with annotated teacher notes
• Over 110 editable teaching slides
• 17 pupil worksheets aligned with each stage of the writing process
• Sentence stems, writing scaffolds, and success criteria
• Grammar focus: conjunctions, fronted adverbials, and expanded noun phrases
• Audio version of the WAGOLL for accessibility and EAL learners
• Dyslexia-friendly font and layout
• Quizzes, retrieval tasks, and assessment tools included

This unit links directly to upper KS2 science content on Properties and Changes of Materials and offers a clear, purposeful way to strengthen both explanation writing and scientific understanding. Whether used for whole-class instruction, intervention groups, or independent writing assessment, it provides everything you need to teach confidently and effectively.

If you have questions do not hesitate in emailing me at: bitesizeeducation01@gmail.com

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