Materials

Materials

1. Technical materials

   • produce objects
   • constract machines
   • to build houses

2. Materials properties

   • phisical
   • chemical
   • technological

3. density

   • d=m/v
     • water

4. optical properties

   • opacity
     • door of cartoon
   • transparency
     • water
   • translucently
     • glass

5. magnetism

   • matal

6. permeability

   • waterproof

7. porosity

   • spores

8. hardness

   • rocks

9. tenacity

   • bells

10. fragility

    • glass

11. elasticity

    • gome

12. plasticity

    • plastic

13. ductility

    • copper

14. malleability

    • slate

15. machanical resistance

    • hammer,s material

16. weldability

    • plastic

17. fusibility

    • bronze

18. melting point

    • iron

19. thermal conductivity

    • cooking put

20. electrical conductivity

    • handle

21. acoustic conductivity

    • conductors
      • The bronze
    • insulators
      • cotton fibers

22. ecological properties

    • reciclability
    • toxicity
    • biodegradability