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Physical Change, Chemical Change - Coggle Diagram

- - - - Expansion is when the volume increases and density decreases
        
        Example
        
        Thermometer
        
        The liquid expands when heated and contracts when cooled, making the level rise and fall
    - - When the volume of a substance decreases and becomes denser, the substance is contracting
- - - - Substance going from liquid to gas
      - when a liquid is heated enough it turns into a gas
    - - Substance going from gas to liquid
      - When a gas cools it becomes a liquid
    - - Substance going from solid to liquid
      - When a solid is heated enough, it will turn into a liquid
    - - Substance going from liquid to solid
      - When a liquid is cooled enough it will form a solid