Chemistry B (Twenty First Century) J258
OCR GCSE Chemistry B (Twenty First Century) J258 — Ideas About Science topical past papers
41 past-paper questions on Ideas About Science for Chemistry B (Twenty First Century) J258.
- Questions
- 41
- Years
- 2018–2024
- With mark scheme
- 100%
- Questions 2020–2024
- 40
Anyone can browse these pages. Opening the questions and their mark schemes takes a free Momentum account.
How Ideas About Science has been examined
From 2020 to 2024, Ideas About Science was on Paper 2 in 4 of 5 exam series, worth about 25% of that paper’s marks.
| Paper | Questions | Share of marks | Series |
|---|---|---|---|
| Paper 1 | 9 | 18% | 5 of 5 |
| Paper 2 | 11 | 25% | 4 of 5 |
| Paper 3 | 9 | 15% | 4 of 5 |
| Paper 4 | 11 | 21% | 5 of 5 |
Momentum’s own count, over the questions in its bank for these years: a series is one exam session, every zone included, and a question filed under two chapters counts in both. Median marks per question: 9.
Filed in Momentum under: Ideas About Science.
Practising in Momentum
- Every question in a chapter as one list, from every paper and year in the bank, newest first or shuffled.
- Each question turns over to its own part of the mark scheme, where the board published one.
- Narrow by paper, year, session, zone and marks, and star the questions worth keeping.
- Pick chapters, a number of questions and a time, and the exam builder draws a mock to sit and mark.
Past-paper questions and mark schemes are the copyright of OCR. Momentum shows them to signed-in learners for revision and does not publish them on these pages.