[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207918-en":3,"doc-seo-207918-105":30,"detail-sidebar-cat-0-en-105":91},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":20,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},207918,7971474921005,"Grenda","https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0",4,"Exam","GCSE Twenty First Century Science Chemistry B (J258) - Specification","Accredited GCSE (9–1) Chemistry B (Twenty First Century Science) specification J258 for first assessment in 2018, covering the Cambridge OCR Level 1/Level 2 qualification. Version 4.0 (August 2026) outlines the rationale for choosing the qualification, provides an overview of content including chapters C1 to C8, and explains assessment arrangements, objectives, tiers, language, availability, retakes, and synoptic assessment. It also details administration requirements, post-results services, malpractice, and appendices such as grade descriptors, overlap, accessibility, units and safety, plus health and safety guidance and update summaries.","Qualification Accredited  \nSpecification  \nGCSE  \nTwenty First Century Science Chemistry B  \nCambridge OCR Level 1/Level 2 GCSE (9-1) in Chemistry B ( Twenty First Century Science)  \nJ258  \nFor first assessment in 2018  \nVersion 4.0 (August 2026) [ocr.org.uk/gcsec21chemistry](ocr.org.uk/gcsec21chemistry)  \ni ~~ ~~AAoofutSeouptermnew~~ ~~naber~~ ~~2025m,~~ ~~oeur~~ ~~name~~ ~~is~~ ~~Cambridge~~ ~~OCR.~~ ~~  \nStudents who sat an exam in summer 2025 will receive a Cambridge OCR branded exam certificate (our new brand), which will be the same for all future exam series.  \nYou’ll continue to see the OCR or Oxford Cambridge and RSA Examinations name while we work to update our material to our new name, Cambridge OCR. This will take some time, and you can still access all up-to-date qualification resources and materials via Teach Cambridge.  \nImportant: We’ll keep the OCR/Oxford Cambridge and RSA name on existing teaching resources while the content of these remains applicable to the specification being taught. New and refreshed resources will be produced using the Cambridge OCR name/logo.  \nAre you using the latest version of this specification?  \nThe latest version of our specifications will always be on our website and may differ from printed versions. We will inform centres about changes to specifications.  \nTell us what you think  \nYour feedback plays an important role in how we develop, market, support, and resource qualificationsnow and into the future. We want teachers and students to enjoy and get the best out of our qualifications and resources, but to do that we need honest opinions to tell us whether we’re on the right track or not. That’s where you come in.  \nYou can email your thoughts [to](to support@ocr.org.uk or visit our feedback)[ ](to support@ocr.org.uk or visit our feedback)[support@ocr.org.uk](to support@ocr.org.uk or visit our feedback)[ or visit our](to support@ocr.org.uk or visit our feedback)[ ](to support@ocr.org.uk or visit our feedback)[feedback](to support@ocr.org.uk or visit our feedback) page to learn more about how you can help us improve our qualifications.  \nDesigning and testing in collaboration with teachers and students  Helping young people develop an ethical view of the world  \n Equality, diversity, inclusion and belonging (EDIB) are part of everything we do  \nContents  \nSupport and Guidance ii  \nAssessment Preparation and Analysis Service iii  \n\n| 1 | Why choose an OCR GCSE (9–1) in Chemistry B (Twenty First Century Science)? 1 |  |\n| --- | --- | --- |\n|  | 1a. Why choose an OCR qualification?\u003Cbr>1b. Why choose an OCR GCSE (9–1) in Chemistry B (Twenty First Century Science)?\u003Cbr>1c. What are the key features of this specification?\u003Cbr>1d. How do I find out more information? | 1\u003Cbr>2\u003Cbr>3\u003Cbr>4 |\n| 2 | The specification overview\u003Cbr>2a. OCR’s GCSE (9–1) in Chemistry B (Twenty First Century Science) (J258) 2b. Content of GCSE (9–1) in Chemistry B (Twenty First Century Science) (J258) 2c. Content of chapters C1 to C8\u003Cbr>2d. Prior knowledge, learning and progression | 5\u003Cbr>5\u003Cbr>6\u003Cbr>9\u003Cbr>67 |\n| 3 | Assessment of GCSE (9–1) in Chemistry B (Twenty First Century Science)\u003Cbr>3a. Forms of assessment\u003Cbr>3b. Assessment objectives (AO)\u003Cbr>3c. Command words\u003Cbr>3d. Tiers\u003Cbr>3e. Total qualification time\u003Cbr>3f. Qualification availability outside of England 3g. Language\u003Cbr>3h. Assessment availability 3i. Retaking the qualification\u003Cbr>3j. Assessment of extended response 3k. Synoptic assessment\u003Cbr>3l. Calculating qualification results | 68\u003Cbr>68\u003Cbr>69\u003Cbr>70\u003Cbr>72\u003Cbr>72\u003Cbr>73\u003Cbr>73\u003Cbr>73\u003Cbr>73\u003Cbr>73\u003Cbr>74\u003Cbr>74 |\n| 4 | Admin: what you need to know\u003Cbr>4a. Pre-assessment\u003Cbr>4b. Special consideration\u003Cbr>4c. External assessment arrangements\u003Cbr>4d. Results and certificates\u003Cbr>4e. Post-results services\u003Cbr>4f. Malpractice | 75\u003Cbr>75\u003Cbr>76\u003Cbr>76\u003Cbr>77\u003Cbr>77\u003Cbr>77 |\n| 5 | Appendices\u003Cbr>5a. Grade descriptors\u003Cbr>5b. Overlap with other qualifications 5c. Accessibility\u003Cbr>5d. Units in science\u003Cbr>5e. Mathematical skills\u003Cbr>5f. Mat","cbCaiosfbuR5WXT0","https://ap.wps.com/l/cbCaiosfbuR5WXT0","pdf",6078753,1,94,"English","en",105,"# Why choose an OCR GCSE (9–1) in Chemistry B (Twenty First Century Science)?\n## Why choose an OCR qualification?\n## Key features of this specification\n## Find out more information\n# The specification overview\n## Specification (J258)\n## Content and chapters C1 to C8\n## Prior knowledge, learning and progression\n# Assessment of GCSE (9–1) in Chemistry B (Twenty First Century Science)\n## Forms of assessment\n## Assessment objectives (AO)\n## Command words, tiers, total qualification time\n## Qualification availability, language, retaking, extended response, synoptic assessment, results calculations\n# Admin: what you need to know\n## Pre-assessment\n## Special consideration\n## External assessment arrangements\n## Results and certificates\n## Post-results services\n## Malpractice\n# Appendices\n## Grade descriptors\n## Overlap with other qualifications\n## Accessibility\n## Units in science and mathematical skills\n## Periodic Table and health and safety\n# Summary of updates","[{\"question\":\"What is the qualification covered by this specification?\",\"answer\":\"The document specifies the Cambridge OCR Level 1/Level 2 GCSE (9–1) in Chemistry B (Twenty First Century Science), identified as J258.\"},{\"question\":\"When was this qualification first assessed and what version is this?\",\"answer\":\"It states the first assessment was in 2018 and the current document is Version 4.0 (August 2026).\"},{\"question\":\"What main areas does the specification include besides teaching content?\",\"answer\":\"It covers assessment arrangements and objectives, administrative requirements (including results and certificates), and appendices such as grade descriptors, mathematical skills, the Periodic Table, units in science, and health and safety.\"}]","GCSE Twenty First Century Science Chemistry B (J258) - 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