Learning objective

Explain and describe various techniques for separating and purifying substances, including: (a) using an appropriate solvent (b) filtration (c) crystallisation (d) simple distillation (e) fractional distillation

Read the explanation, check the common trap, then practise with flashcards and questions.

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Exam focus

Read the explanation.
Check key terms.
Practise with linked questions.

Cambridge IGCSE Combined ScienceExperimental techniques and chemical analysisCore content

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Quick explanation

Explain and describe various techniques for separating and purifying substances, including: (a) using an appropriate solvent (b) filtration (c) crystallisation (d) simple distillation (e) fractional distillation

This point belongs to Separation and purification, especially Separation and purification outcomes.
You need to be able to explain and describe various techniques for separating and purifying substances, including: (a) using an appropriate solvent (b) filtration (c) crystallisation (d) simple distillation (e) fractional distillation.
The key ideas to know are Describe and Explain.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplain

Why it matters

This objective helps connect Separation and purification outcomes to exam-style questions, flashcards, and revision notes for Separation and purification.

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