OCR GCSE Chemistry B (Twenty First Century Science) past papers

This page links every Chemistry B (Twenty First Century Science) paper OCR publishes for everyone to download, newest first, starting with June 2025. Each link opens the PDF on OCR's own website. The most recent series is usually released a year or so after the exam, and it will appear here once OCR makes it public.

Yes, 32 of the 36 question papers here have a mark scheme, and 24 have an examiner report as well, which is worth reading for the mistakes that cost the most marks.

In June 2026, a grade 4 needed 87 out of 180 on the Foundation tier. On the Higher tier, a grade 7 needed 111 out of 180 and a grade 4 needed 57. The grade boundaries for every series from June 2018 to June 2026 are on this course's grade boundaries page, and each series of papers here links to its own year's table, so you can mark a paper and read your grade.

It is linked at the top of this page: OCR's own Chemistry B (Twenty First Century Science) specification (J258), a PDF on its website, which sets out what you can be examined on and how the exams are marked. According to OCR's grade boundaries for June 2026, the course is examined in 2 papers on each of the Foundation and Higher tiers, of 90 marks each.

cookie's practice decks can make fresh exam-style questions from a specification or your own notes, with feedback and spaced repetition, so you can keep practising once the papers run out.

Cookie Tutoring may have tutors for Chemistry B (Twenty First Century Science). The Find a tutor link keeps the subject and qualification filters from this page, so you can check the marketplace without assuming that a suitable tutor is available.