ARTIFICIAL MATERIALS

artificial /organic / inanimate
- wooden
  - paper
- polymers
  - polyethylene (plastic bags)
  - Polystyrene (cups)
  - polycarbonate (CDs)
  - elastomers
    - silicone rubber
    - nitrile rubber
- ceramic
  - porcelain (vases, teacups)
  - PZT (piezoelectric used in lighters and ultrasonic transducers),
  - Concrete (buildings)
- foam
- sand or glass
- metal
  - copper alloys
  - copper wires
  - stainless steel
Artificial/animate