MATERIALS

MATERIALS

1. TECHNICAL MATERIALS

   • To produce
   • To construct
   • To build

2. PROPERTIES

   • Physical properties
     • Density
       • Example: wood and sponge
     • hardness
       • Example: clay, lead and glass
     • optical properties
       • Opacity
         • Example: wood
       • Translucency
         • Example: a cristal glass
       • Transparency
         • Example: a window
     • magnetism
       • Example: iron
     • tenacity
       • Example : bell
     • fragility
       • Example: ceramic
     • elasticity
       • Example: rubber
     • plasticity
       • Example: playdough
     • ductility
       • Example: copper
     • meleability
       • Example: slate
     • porosity
       • Example: sponge
     • permeability
       • Example: bottles
   • Chemical properties
     • Ecological properties
       • Reciclability
         • Example: Glass
       • Toxicity
         • Example: petroleum
       • Biodegradability
         • Example: water-soluble plastics
     • Acoustic conductivity
       • Example: Bronze
     • Melting point
       • Example: copper
     • Fusibility
       • Example: Brass
   • Technologycal properties
     • thermal conductivity
       • Example: cooking pot
     • electrical conductivity
       • Example: handle
     • Weldability
       • Example: plastic