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Plastics (Environmental impact of plastic (Heating plastics (Plastics…

- - - - High density
        
        Hard
        
        Ridged
        
        Used for
        
        Plastic crates
        
        Dustbins
      - Low density
        
        Soft
        
        Flexible
        
        Used for
        
        Plastic bags
        
        Bottles
    - - Used for items such as yoghurt pots
      - Expanded polystyrene is made by simply blowing in some gas during the moulding stage. Is low density and excellent insulation properties
- - - - Polymerisation are small repeating units called monomers join together to form a large molecule called a polymer