Mind map

Mind map

1. Materials

   • Raw materials: Taken from nature
     • animals: example: silk
     • vegetable: example: cotton
     • mineral: exam'ple: clay
   • Processed materials: have been prepared
     • example: glass
   • Finished products: Created by humans to satisfy their needs
     • Raw materials-processed materials-finished products

2. Properties of materials

   • Phisical: are those we can mesure by,...
     • Electrical, thermal and acoustic conductivity
     • elasticity
     • thermal expantion
     • toughness
     • Hardness
     • Maleability and ductility