The Nature of Matter · Physical Science

Phase Changes and Energy

Examining how temperature and pressure influence the transition between different states of matter.

Key Questions

  1. 1Why does the temperature of a substance remain constant during a phase change?
  2. 2How does evaporation differ from boiling at a molecular level?
  3. 3What causes certain substances to sublime directly from solid to gas?

CBSE Learning Outcomes

CBSE: Matter in Our Surroundings - Class 9
Class: Class 9
Subject: Science (EVS K-5)
Unit: The Nature of Matter
Period: Physical Science

Suggested Methodologies

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More in The Nature of Matter

States and Particles

Investigating the arrangement and movement of particles in solids, liquids, and gases.

2 methodologies

Purity and Mixtures

Distinguishing between pure substances and mixtures while exploring separation techniques.

2 methodologies

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