How IGCSE Chemistry (9-1) (0971) is really marked
IGCSE Chemistry (9-1) 0971 spans twelve papers, and marking is overwhelmingly point-based: 1,702 of 1,744 questions in our bank are marked point by point, with only 42 marked by calculation. Multiple-choice papers 11-12 and 21-22 are entirely points — one mark for the correct option. The structured papers (31-32, 41-42) and practical papers (51-52, 61-62) are also mostly points, with a small proportion of calculation questions (typically stoichiometry or concentration) scattered through them.
Because so much of the syllabus is point-marked, each mark corresponds to a specific fact, observation or term that the mark scheme lists as acceptable. This rewards precise recall and terminology — naming the correct element, ion, or process exactly — over general description. There is no level-of-response marking anywhere in this syllabus according to our bank, so there is no 'quality of writing' credit to fall back on: the content itself has to be correct and specific.
The practical papers test experimental and observational skills using the same point-marked logic: a mark for recording a result with the right unit, a mark for identifying the correct piece of apparatus, a mark for a valid conclusion drawn from given data. As with the theory papers, marks are earned by naming the right thing precisely, not by writing more.
Command words in IGCSE Chemistry
| Command word | Times in our bank | What it demands |
|---|---|---|
| Identify | 630 | The most frequent command word — requires picking out the single correct answer, substance, or feature named in the mark scheme. |
| State | 306 | Wants a brief, precise fact given with no development, such as a definition, a name, or a single value. |
| Name | 114 | Requires giving the correct chemical name or term exactly, since near-miss or informal names are not usually credited. |
| Describe | 112 | Needs an accurate account of an observation, trend or process using correct chemical vocabulary, not everyday language. |
| Complete | 108 | Asks you to fill in a gap in a table, equation or diagram so that it is fully correct and consistent with what is already given. |
| Explain | 93 | Requires reasoning about why something happens at a chemical level, connecting an observation to an underlying cause. |
| Calculate | 63 | Needs a correct final value with method shown, since working can earn credit even when the final answer is wrong. |
| Deduce | 61 | Asks you to work out an answer logically from data or information given in the question, rather than recall it directly. |
How to revise with past papers
Because almost every mark in this subject is a discrete point rather than a level, past-paper practice pays off most when you mark your own answers strictly against the exact wording the mark scheme accepts, rather than against whether you 'understood' the chemistry. Keep a list of any correct-in-substance answers that used the wrong specific term, since precision of vocabulary is exactly what point-marking rewards.
With twelve papers spanning theory, alternative-to-practical and practical formats, spread your revision across all three types rather than concentrating on theory alone — the practical-skills questions test a distinct, drillable set of habits (units, correct apparatus names, valid conclusions from given data) that are separate from chemical knowledge itself.
For the small proportion of calculation questions, practise setting out method clearly even when you are confident of the answer, since a clear method is what earns credit if a later step goes wrong — a habit worth building even in a syllabus where most marks come from points rather than working.
Practise real 0971 questions with AI marking →FAQs
How much of this subject involves calculations?
Very little in proportion — only 42 of 1,744 questions in our bank are calculation-marked, with the rest marked point by point, so recall and precise terminology matter more than numerical fluency overall.
Is any part of this subject marked by level of response?
No — our bank shows no level-of-response marking anywhere in this syllabus; every question is either point-marked or calculation-marked.
Which command words should I prioritise revising?
Identify and State together account for the largest share of marks, so practise giving exact, specific answers quickly, since these command words reward precision over elaboration.
Do the practical papers test different skills from the theory papers?
Yes — papers 51-52 and 61-62 focus on practical and observational skills (recording results correctly, naming apparatus, drawing valid conclusions), which are worth practising separately from chemical recall.