1
Plastics don't let the water or other liquids pass through them, so they are _________________.
2
Depending on their ________________, plastics can be elastic or rigid, more or less tenacious, etc.
3
Most plastics have good enough _________ resistance, so they can resist forces of traction, compression, bending and torsion.
4
All the plastics are good electrical, thermal and acoustic ______________.
5
Most plastics are ________________ because they can be transformed into sheets by applying compression forces.
6
Thermoplastics are ____________________ because objects can be melted and re-shaped many times.
7
Plastics are able to be transformed into wires or filaments, so they are _____________.
8
Plastics are fusible, so they are _____________ because they can take the form of a mould.
9
Most plastics have low density, so they are ______________ materials.
10
Plastic objects are relatively ____________ to manufacture because most of the plastics melt at low temperatures.
