Classification of materials

Classification of materials

1. Good Plastic Glass Steel Wool Marble

2. Many of these materials are originated in nature:

   • Wood, cork, cotton, wool petroleum, iron, gold, clay and marble

3. The materials that are extracted directly of nature are called raw materials

   • Animal origin, mineral origin, vegetable origin

4. Materials can’t be used as they are found in nature.

5. The materials we use to produce objects can be classified into six groups.

   • Metals
   • Textile materials
   • Stone materials
   • Plastic materials
   • Wood
   • Ceramic materials

6. Technical materials are used :

   • To build houses, bridges, parks,...
   • To produce the objects we use in our everyday life
   • To construct all kinds of machines