Heating Matter: Changes in State

Introduction

• Focus: Understanding how matter changes state when heated.
• Example: Ice transitioning through states when heated.

Solid State

• Example: Ice from the freezer.
• Characteristics of Solids:
  • Particles tightly packed.
  • Particles do not move freely or slide past each other.
  • Shape remains constant when transferred between containers.

Transition to Liquid State

• Process: Heating causes the ice to melt into water.
• Characteristics of Liquids:
  • Particles less tightly packed than in solids.
  • Particles can slide past each other.
  • Liquids can flow and change shape.
  • Shape adjusts to container but volume remains constant.

Transition to Gas State

• Process: Heating water causes it to evaporate into water vapor.
• Characteristics of Gases:
  • Particles move freely.
  • Gases change shape and volume.
  • Gas spreads out to fill the available space.

Conclusion

• Observation: Matter changes state when heated, affecting particle movement and properties.
• Next Steps: Consider what happens when matter is cooled.

Additional Information

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