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This formative assessment resource is designed to assess student understanding of acids, alkalis, indicators, neutralisation, and titration techniques—essential topics in secondary chemistry. Aligned with Edexcel IGCSE, AQA, and Cambridge specifications, the activity provides a comprehensive and structured approach to evaluating both theoretical knowledge and practical application.
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Key Features**

• Covers core content, including the pH scale, properties of acids and alkalis, neutralisation reactions, indicators, and the method and calculations involved in titrations.

• Includes real-world practical contexts, such as acid-base titrations using sodium hydroxide and hydrochloric acid, with worked examples for analysis.

• Scaffolded question format, progressing from straightforward recall to applied problem-solving, chemical equations, and titration calculations involving molarity and volume.

• Flexible application for in-class assessment, homework, revision sessions, or flipped learning.

Educational Benefits

Assesses students’ confidence with both the conceptual and practical aspects of acid-base chemistry.

Strengthens scientific literacy and numeracy through interpretation of results and quantitative titration work.

Encourages accurate use of vocabulary, such as “neutralisation,” “indicator,” and “concentration.”

Differentiated to support a wide range of learners, while offering extension opportunities for higher-ability students.