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MATERIALS - Coggle Diagram

- - - - manufactured good is any obiect created by humans to satisfy
        their needs and improve their standard of living
        
        PROCESS
        1.we get the raw materials from nature
        2.we process them to make materials
        3.we make goods with these materials
        
        2.
        
        3.
        
        1.
        
        they can be made of different materials
    - - wood
      - metals
      - plastic
      - textiles
      - stone
      - ceramics
    - - ELECTRICAL: how the material reacst to electricity.
        
        CONDUCTIVITY:Some materials conduct ( allow something
        to pass through it or transmit it) electricity.
        
        ELECTRICAL INSULATION: Some materials don't conduct electricity.
      - TERMAL
        
        CONDUCTIVITY
        
        the material conducts heat.
        
        EXPANSION/CONTRACTION
        
        the material contracts os expands at high temperatures.
        
        FUSIBILITY
        
        the material goes from solid to liquid at high temperatures.
        
        WELDING
        
        the materials can be used to weld two or more pieces together.
      - ACOUSTIC
        
        CONDUCTIVITY: capacity of materials to transmit sound.
        
        INSULATORS: materials that don't conduct sound well.
      - MAGNETIC
        
        MAGNETISM: some materials atract other metals.
      - OPTICAL
        
        OPAQUE: light can't pass through them.
        
        TRANSLUCENT: these materials allow light trough them, but it doesen't allow obejects to be clearly seen trough them.
        
        TRANSPARENT: light can pass trough them and you can clearly see objects.
      - MECHANICAL
        
        depends on the type of force that acts upon them
        
        ELASTICITY: allows the material to return to it's original form after a
        force that has changed its shape is removed.
        
        PLASTICITY: allows it to be permanently deformed.
        
        MALLEABILITY: allows a material to be spread into sheets or films.
        
        DUCTILITY: allows a material to be formed into filaments, or wires.
      - HARDNESS
        
        A hard matenal is not easilv scratched bv another matenal
        
        TOUGHNESS: it's the resistance to breaking that a material shows.
        
        BITTERNESS: when the material breaks easily.
      - OTHERS
        
        DENSITY: it's the relationship between the mass of an obiect and its
        volume.
        
        POROSITY: Some materials can absorb or release liquids or gases.
        
        PERMEABILITY: Some materials allow water or other liquids to filter through them.
        
        IMPERMEABILITY: some materials don't allow water or other liquids to filter through
        them.
      - CHEMICAL
        
        when the composition changes
        
        OXIDATION: this happens when a material reacts with oxygen in the air or water.
      - ecological
        
        Materials
        are classified according to the impact they have on the environment
        
        Some matenals come from renewable raw materials. These raw
        materials can be regenerated