Most plastics are made from chemicals obtained from

1
CHEMISTRY DEPARTMENT WAID ACADEMY
Plastics
2
Most plastics are made from chemicals obtained
from

• biogas
• plant material
• crude oil
• natural gas

3
Which three materials are all plastics?

• Wool, Nylon and PVC
• Polythene, Formica and PVC
• Cotton, Polystyrene and Bakelite
• Silk, PVC and Nylon

4
If a material is described as being biodegradable
it can be

• broken down by bacteria in the soil and rot away.
• softened by heating.
• disposed of by burning.
• easily moulded into different shapes.

5
Most burning plastics produce

• sulphur dioxide
• nitrogen dioxide
• hydrogen
• carbon monoxide

6
A thermoplastic is a plastic material which

• burns without producing toxic fumes.
• can be broken down by bacteria in the soil.
• can be reshaped on heating.
• does not soften on heating.

7
Electrical plugs and sockets are made from
plastics which are

• thermosetting plastics.
• thermoplastic plastics.
• biodegradable plastics.
• made from PVC

8
Plastics are made up of long chain molecules
called

• monomers.
• polymers.
• residues.
• Fractions.

9
The process of joining many small molecules
together to make a plastic is called.

• recycling.
• incineration.
• monomerisation
• polymerisation.

10
The small molecules which are joined together to
make plastics are called

• plastimers.
• monomers.
• polymers.
• elastomers.

11
Recycling of plastics can be difficult because

• most plastics burn.
• plastics are not widely used.
• plastics are non-biodegradable.
• there are many different types of plastic in
  common use.