Combined Science GCSE
Identification of substances
What Identification of substances means in Combined Science GCSE, as defined for AQA.
Definition of Identification of substances
Check what you remember
Read the wording for your board, then hide it and explain Identification of substances in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Comparing spots from a mixture with spots from known dyes can identify the components, using the different distances moved.
Topics that use Identification of substances
- Chromatography (AQA GCSE)
Related terms
- Chromatogram
- Chromatography
- Distribution between phases
- Identification by comparison
- Identification using reference values
- Impure substance
- Measurement from a baseline
- Pure substance
Using Identification of substances in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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