Chemistry study notes
Data and Experimental Skills
Read unfamiliar evidence, make useful measurements and explain what a result can support.
A-Level 8873, revised syllabus (2026-2027)
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3 topicsScope and references
Learning outcomes and sources
Assessment Objective B: handling, applying and evaluating information. Use the outcome map to find the explanation for a particular syllabus requirement.
These labels map assessment skills and practical techniques, separately from the numbered theory outcomes. P, MMO, PDO and ACE are practical skill areas; T labels follow the listed techniques, and B labels follow H1 Assessment Objective B.
See the learning outcome map
B1 Organise relevant information
- Locate and present information from supplied sources
Read unfamiliar data with a purposeTurn measurements into a graph or calculation
B2 Select what matters
- Distinguish relevant evidence from extraneous detail
B3 Manipulate and translate data
- Move between numerical, symbolic and graphical forms
- Use units and suitable precision
B4 Find patterns and draw inferences
- Analyse trends and report conclusions supported by measurements
Turn measurements into a graph or calculationEvaluate evidence and explain the direction of an error
B5 Explain relationships
- Connect a measured pattern to a chemical mechanism or principle
B6 Apply chemistry to unfamiliar situations
- Use supplied definitions and familiar principles without relying on a familiar substance name
Read unfamiliar data with a purposeEvaluate evidence and explain the direction of an error
B7 Integrate knowledge
- Combine rate, reacting amount and measurement conditions in one argument
Read unfamiliar data with a purposeEvaluate evidence and explain the direction of an error
B8 Evaluate information and hypotheses
- Separate claim and evidence
- Recognise confounding variables, scatter and systematic error
B9 Justify a conclusion or action
- Use specific evidence and a causal chain
- Target an improvement to a real limitation
B10 Recognise model limitations
- State conditions and assumptions
- Limit a conclusion to the measured range and supported comparison
Turn measurements into a graph or calculationEvaluate evidence and explain the direction of an error
- Pure Chemistry 6092: practical assessment
Pages 26-28: P, MMO, PDO, ACE, experimental techniques and recording guidance. Technique labels T1-T7 follow the numbered list.
- Combined Science Chemistry: practical test
Chemistry Practical Test and Practical Techniques, page 58. Practical(a)-(g) follow its list; Techniques groups the recording guidance.
- H1 Chemistry 8873: assessment objectives
Assessment Objective B, page 6. H1 has no practical paper; its view includes only the three data and evidence topics.
- H2 Chemistry 9476: practical assessment and reference notes
Pages 35-40: skills, eight technique areas and qualitative-analysis notes. T1-T8 follow the listed techniques. Worked examples and graph here are original.
- 2027 Pure Chemistry K324
Practical assessment and techniques, pages 26-28; scope and recording guidance checked against the 2026 version.
- 2027 Combined Science Chemistry K326 / K328
Chemistry practical assessment and techniques; the same practical scope and exclusions are retained.
- 2027 H1 Chemistry 8873
Assessment Objective B: handling, applying and evaluating information.
- 2027 H2 Chemistry 9476
Practical assessment and qualitative-analysis reference, pages 35-40; same technique areas and exclusions.
- Grail: RI Planning Experiments Tutorial 2 (2026)
Pages 1-10 consulted for operational planning, measurement and clock-method assumptions. The quantities, examples and graph in these notes are original; official H2 hands-on exclusions are retained.
- Grail: Beatty thermometric titration exercise
Pages 1-4 consulted for temperature-volume recording and intersecting-trend interpretation. The worked numerical graph here is original and appears in the H2 practical scope.
- Grail: RI Planning Experiments Tutorial 3 (2026)
Pages 3-4 consulted for explaining reflux, washing, drying and distillation from product and impurity properties. The generic purification example here is original.
- Grail: RI Acid-Base Equilibria (2023)
Page 30 visually checked for the named practical indicator colours and titration direction; scope checked against current official practical requirements.