Unlimited GCSE Science questions, marked instantly against real AQA schemes — showing exactly which marks you hit, which you missed, and how to fix it.
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graded within 1 mark of the AQA examiner, across a full paper*
to mark your answer, with full examiner feedback
marks — the average gap from the examiner’s mark*
AQA GCSE Biology, Chemistry & Physics topics covered
real AQA past questions mined for the patterns examiners keep reusing
exam questions — never the same one twice
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AQA GCSE Science subjects — Biology, Chemistry & Physics, all live
*From an internal evaluation of 128 real examiner-graded answers across Biology, Chemistry & Physics, marked against official AQA mark schemes. The within-1 figure is weighted to the mark-tariff mix of a real AQA paper (drawn from our corpus of 1,226 real past questions); the average difference is 0.12 marks per answer. We keep improving it.
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Not just a grade — the exact marks you missed, and how to earn them.
Pick an answer and mark it, graded against a genuine AQA mark scheme. See how a weak answer and a strong one get told apart — honestly.
Explain how the human breathing system is adapted to maximise the rate of gas exchange.
Oxygen goes into the alveoli in the lungs. The alveoli have a large surface area and thick walls, so oxygen can diffuse quickly into the blood in the capillaries.
Every one is freshly written in the style of the AQA specification — across both subjects, every topic and both tiers. These are genuine, not mock-ups.
Cell biology · Diffusion
Carbon dioxide from the air moves into the mesophyll cells of a leaf through open stomata. Name the process by which the carbon dioxide moves into the cells.
Any AQA Biology, Chemistry or Physics subtopic, mark value and tier.
A fresh exam-style question every time — never the same one twice.
Examiner-style feedback showing exactly which marks you hit and missed.
The exact mark you dropped, and why — then it loops back to question one on that same spot.
Every full mock question feeds a real predicted GCSE grade, per subject — built from actual exam-style performance against real grade boundaries, not a guess. Watch it move as they revise, weeks before results day, not on it.
Example — Biology
Predicted grade 7
Up from a 5, six weeks ago
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Every mark is shown against the real AQA scheme it came from — never a black-box score.
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Yes — answers are graded against genuine AQA mark schemes and examiner reports, including the strict rules examiners use (an unqualified answer scores zero, not partial credit). In our own testing it agreed with the official mark to within 1 mark about 98% of the time across a typical paper, and matched the exact mark on virtually every 1–3 mark question.
AQA only, for now — not Edexcel, OCR or WJEC. AQA GCSE Biology (8461), Chemistry (8462) and Physics (8463), across every topic and both Foundation and Higher tier. Check your specification code matches before subscribing.
Yes. After any answer is marked, “Ask the examiner” lets you have a proper back-and-forth about your exact response — why a point didn’t score, what a full-mark answer would look like, whether your wording is precise enough for the exam. It’s grounded in what you actually wrote and the real mark scheme, not generic advice, and it won’t change your mark — it explains it. Free accounts get 3 questions per answer; Premium is unlimited.
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