Twelve subjects at the ISEB 13+ standard, topic by topic, with timed mock papers in the real format and written answers marked against a mark scheme.
Common Entrance at 13+ is set by the Independent Schools Examinations Board (ISEB) and usually sat in Year 8 by pupils moving on to senior schools that use it. Each subject follows ISEB's published specification, and some subjects are offered at more than one level.
Our questions are written from those specifications, covering every content area, and the mock papers follow each paper's format, timing and marks. Your child's school will confirm which subjects and levels they are sitting.
Maths paper 1 (non-calculator): 60 minutes, 100 marks · Maths paper 2 (calculator): 60 minutes, 100 marks · Mental arithmetic practice: 10 minutes, 20 marks · Maths additional paper (calculator): 60 minutes, 100 marks
474 questions across 21 topicsEnglish reading paper: 70 minutes, 50 marks · English writing paper (one task): 75 minutes, 15 marks
330 questions across 14 topicsBiology paper: 40 minutes, 60 marks
280 questions across 14 topicsChemistry paper: 40 minutes, 60 marks
281 questions across 13 topicsPhysics paper: 40 minutes, 60 marks
316 questions across 14 topicsGeography paper: 60 minutes, 80 marks
335 questions across 21 topicsHistory paper: Medieval Realms 1066–1485: 60 minutes, 50 marks · History paper: The Making of the UK 1485–1750: 60 minutes, 50 marks · History paper: Britain and Empire 1750–1914: 60 minutes, 50 marks
310 questions across 10 topicsTheology, philosophy and religion paper: 60 minutes, 40 marks
265 questions across 18 topicsFrench Level 1 reading and writing paper: 60 minutes, 50 marks · French Level 2 reading and writing paper: 60 minutes, 50 marks
468 questions across 19 topicsLatin Level 1 paper: 60 minutes, 75 marks · Latin Level 2 paper: 60 minutes, 75 marks · Latin Level 3 paper: 60 minutes, 75 marks
503 questions across 21 topicsSpanish reading and writing paper: 60 minutes, 50 marks
350 questions across 19 topicsGerman reading and writing paper: 60 minutes, 50 marks
368 questions across 18 topicsLanguage practice covers reading and writing; listening and speaking aren't included. Science follows the Core level papers.
Choose a subject and the topics to work on, then 10, 20 or 30 questions. Each answer is marked straight away, with the right answer and an explanation, and your weakest topic is suggested next.
A full paper in the real format, against the clock. No feedback until it's handed in; then every answer is marked and explained, with marks by section and topic.
Longer answers are marked against a mark scheme, with feedback on what earned marks and how to improve. If marking isn't available, you mark it yourself against the model answer.
1 credit buys one practice session in a subject or one full mock paper. Credits are shared across every OnlinePrep product: a single credit is £3.99, less each in larger packs, and packs last 12 months. See pricing