“Why did I miss that mark?”
Try the question before opening the mark scheme. Compare your answer with each marking point. Explain what was missing, then retry without looking.
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Try the question before opening the mark scheme. Compare your answer with each marking point. Explain what was missing, then retry without looking.
Find the step you don’t understand in the model answer. Ask the AI tutor why that step is needed. Write the explanation in your own words and check it again.
Find a weaker topic on your progress dashboard. Retry a question from your Mistake Vault. Compare the new feedback with your earlier attempt.
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A worked example using our own exam-style practice question. See what a student might write, what is missing and how to improve it.
Sodium chloride contains ions. When it melts, the particles have more energy.Illustrative score: 1 / 3
Sodium chloride contains charged ions. In the solid, the ions are fixed in a lattice and cannot move. When molten, the ions can move and carry charge through the liquid.
The improvement links the structure to the movement of charge, explaining both states.
Original question and illustrative feedback written for this demonstration. This is free to view and uses none of your weekly checks. AI feedback on your own answers may vary and can make mistakes. Our practice scores are guidance, not exam-board marks.
Exam Pass costs £4.99 once for 12 months from confirmed purchase. There is no automatic renewal.
Offer ends 31 October 2026 (UK time). £19.99 for new purchases from 1 November 2026.
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Keep using the notes, flashcards, quizzes and interactive tools. Free registered accounts still get 3 AI marking checks plus 3 combined mark scheme reveals and MCQ checks each week. Exam Pass adds more feedback and ways to practise when you want them.