Lesson 1, Topic 2
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The particle model

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The idea that everything is made up of tiny particles which are constantly moving around is known as kinetic particle theory

The properties of solids, liquids and gases

Solids

  • Vibrate around a fixed point

  • Close together

  • Regular  pattern

Liquids

  • Slide over each other randomly

  • Close together

  • Arranged randomly

 

Gases

  • Move randomly and rapidly

  • Far apart

  • Arranged randomly

 

Summary