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Primary Key Stage 2 - Revision Tools for Separating Substances. This can be spread out over two lessons. … Content Covered Solutions Sieving to separate solids from solids Filtration to separate solids from liquids Evaporation to separate dissolved substances from liquids Reversible and irreversible changes … Lesson Includes Starter activity (retrieval practice/recall) Group reading to review vocabulary (focusing on words such as dissolve, concentration, solute, solvent, solution, soluble and insoluble). Dilute and Concentrated Solutions (reteach-check-practice cycle 1) Reversible and Irreversible changes (cycle 2) Separating Mixtures (cycle 3) Revision practice sheet English link (finding verbs and fixing capital letters) Math link (calculations on the topic’s theme) Opportunities to develop vocabulary, literacy and oracy SEND adaptations: the lesson is chunked to avoid working memory overload, blue background for Irlens, word banks are provided, text is broken up for dyslexia and a consistent format is followed for ASD. Group reading is differentiated in difficulty and keywords from previous lessons are reinforced. Learning from previous lessons is interlinked to help students catch up after absence. Challenge questions are included for high ability students.