States of Matter (Book)

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Changes of State

Lesson Summary

  • Changes of state are physical changes. They occur when matter absorbs or loses energy.
  • Processes in which matter changes between liquid and solid states are freezing and melting.
  • Processes in which matter changes between liquid and gaseous states are vaporization, evaporation, and condensation.
  • Processes in which matter changes between solid and gaseous states are sublimation and deposition.