UNIT 3: WOOD

UNIT 3: WOOD

1. NATURAL AND PROCESSED MATERIALS

   • Raw materials
     • Animal
     • Plant
     • Mineral
   • Natural materials
   • Processed materials

2. Choosing materials

   • Strong
   • Weighs
   • Attractive
   • Nice to touch
   • Cheap
   • Can build with abaluable
   • Readly
   • Contaminated or toxic

3. Properties

   • Sensory properties
     • Transparent
     • Translucent
     • Opaque
   • Mechanical properties
     • Hardness
     • Toughness
     • Deformability
     • Ductility
     • Malleability
   • Phisical properties
     • Electrical conductivity
       • Thermal expansion
         • Sound conductivity
     • Thermal expansion

4. How we obtain wood

   • Fell
   • Remove de bark
   • Transport
   • Saw
   • Dry
   • Clean, plane and sand
   • Trataments and finishes

5. Wood products

   • Man-made wood
     • Plywood
     • Chipboard
   • Wood derivatives
     • Paper
     • Cardboard
     • Cork