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Learning objective

Recognize and distinguish between physical changes and chemical changes.

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 ScienceChemical reactionsCore content

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Quick explanation

Recognize and distinguish between physical changes and chemical changes

  • This point belongs to Physical and chemical changes, especially Physical and chemical changes outcomes.
  • You need to be able to recognize and distinguish between physical changes and chemical changes.
  • The key ideas to know are Identify, Describe, and Compare.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

IdentifyDescribeCompare

Why it matters

This objective helps connect Physical and chemical changes outcomes to exam-style questions, flashcards, and revision notes for Physical and chemical changes.

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Paper 3 structured question: Physical and chemical changes

Paper 3Theory (Core)3 marks

Description

Changes in Matter

Consider the following processes: melting ice, burning wood, and dissolving sugar in water.

  1. a

    Compare the processes of melting ice and burning wood in terms of physical and chemical changes.

    Aim for approximately 3 distinct marking points.

    [3]
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Cambridge IGCSECombined Science resources