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Intermediate 1 Unit 2d Plastics

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Intermediate 1 Unit 2d Plastics 1 2 3 4 5 6 7 10 8 9 11 12 14 13 15 16 17 What are most plastics made from? Give two examples of a plastic. Give an advantage of a ... – PowerPoint PPT presentation

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Title: Intermediate 1 Unit 2d Plastics


1
Intermediate 1 Unit 2d Plastics
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2
Plastics are made by the chemical industry. Are
they natural or synthetic?
Synthetic
3
What are most plastics made from?
Oil
4
Give two examples of a plastic.
Polythene, polystyrene, perspex, PVC, nylon,
Kevlar, bakelite, formica and silicones
5
Give an advantage of a plastic over a natural
material?
Plastics do not rot like iron. They are lighter
then most metals.
6
What does it mean if a material is biodegradable?
Broken down by bacteria and rot away
7
Most plastics are non biodegradable.What does
this tell us about a plastic?
They do not rot/ they are not broken down by
bacteria
8
Why is it dangerous to burn a plastic?
Poisonous gases are given off. Carbon monoxide
is given off.
9
Name the 3 ways of disposing of plastics ?
Burying, burning recycling.
10
What is a thermoplastic?
A plastic which melts and can be reshaped on
heating.
11
Name the process of joining up monomers to make a
polymer.
Polymerisation
12
Name the polymer made by joining ethene molecules
together.
Polyethene
13
What size is a molecule if it is a polymer?
A large molecule
14
Name the polymer made by joining styrene
molecules together.
Polystyrene
15
Why is important to recycle plastics?
They are made from oil which is a finite
resource. Oil will run out.
16
Name the monomer which is used to make the
polymer polypropene.
Propene
17
What name is given to the small molecules used to
make a polymer?
Monomer
18
Name a toxic gas given off when a plastic is
burned.
Carbon monoxide
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Intermediate 1 Unit 2d Plastics
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