Matter and Its States · Semester 1

Changes of State: Melting and Freezing

Students will observe and explain the processes of melting and freezing, relating them to temperature changes.

Key Questions

  1. Explain the energy changes involved when a substance melts or freezes.
  2. Compare the particle arrangement of a substance before and after melting.
  3. Predict how impurities might affect the melting or freezing point of a substance.

MOE Syllabus Outcomes

MOE: Matter - P4MOE: States of Matter - P4
Level: Primary 4
Subject: Science
Unit: Matter and Its States
Period: Semester 1

Suggested Methodologies

Experiential Learning

Hands-on learn-by-doing with structured reflection

30–60 min

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Stations Rotation

Rotate through different activity stations

35–55 min

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Concept Mapping

Build visual maps of concept relationships

20–40 min

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