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Year 10

Polymer properties and processes

I can identify and justify the material and process used for a polymer product.

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New
New
Year 10

Polymer properties and processes

I can identify and justify the material and process used for a polymer product.

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These resources will be removed by end of Summer Term 2025.

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Lesson details

Key learning points

  1. There are four main stages in the sourcing of polymers: extraction, refinement, cracking and polymerisation.
  2. There is an environmental impact to extracting and processing polymers.
  3. Polypropylene is suitable for kitchen products. It is tough, flexible, food safe and has good corrosion resistance.
  4. Injection moulding is suitable for complex shapes, high volume production and can be automated.

Keywords

  • Synthetic - manufactured, not naturally occuring

  • Biodegradable - decays naturally

  • Fractional distillation - separating component parts of a mixture

  • Polymerisation - chemically combining small molecules called monomers to form long chain structures called polymers

Common misconception

All polymers are non biodegradable and can last for hundreds of year.

Polymers come in many forms including biodegradable and bio-based polymers that will break down more easily in the environment.


To help you plan your year 10 design and technology lesson on: Polymer properties and processes, download all teaching resources for free and adapt to suit your pupils' needs...

Give pupils the opportunity to handle a variety of polymer products. Particular products that have evidence of the injection moulding process. Interacting with the products will enrich the learning.
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Teacher tip
equipment-required

Equipment

An example of a polypropylene citrus fruit juicer.

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Content guidance

  • Risk assessment required - equipment
supervision-level

Supervision

Adult supervision required

copyright

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Where are most polymers sourced from?
Correct Answer: petrochemicals, fossil fuels, oil, gas
Q2.
Polymers can be categorised as __________.
alloys
Correct answer: thermoforming
acrylic
Correct answer: thermosetting
polythene
Q3.
Polymer products are often stamped with this symbol, why?
An image in a quiz
They are sustainable.
The are environmentally safe.
Correct answer: They can be recycled.
They can be reused.
Q4.
Why are single use polymers like drinking straws discouraged?
An image in a quiz
Correct answer: They create waste.
Correct answer: They can cause pollution on land and oceans.
Correct answer: Animals can get stuck in or try to eat them.
Businesses have to buy more.
Q5.
Why are saucepan handles made from a thermosetting polymer?
Correct answer: It will not deform near heat source.
Correct answer: It's a thermal insulator.
Correct answer: It does not conduct heat, so it's safe to hold.
It cannot be moulded.
Q6.
Match the products to the thermoforming polymer which it is made from.
Correct Answer:acrylic,menu stand in a restaurant
tick

menu stand in a restaurant

Correct Answer:high-density polyethylene,polymer milk bottle top
tick

polymer milk bottle top

Correct Answer:low-density polyethylene,carrier bags
tick

carrier bags

Correct Answer:nylon,clothing
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clothing

6 Questions

Q1.
Match the four stages of sourcing and creating polymers to their explanations.
Correct Answer:extraction,obtaining the fossil fuels from within the earth's crust
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obtaining the fossil fuels from within the earth's crust

Correct Answer:refinement,converting the fossil fuels into useful materials
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converting the fossil fuels into useful materials

Correct Answer:cracking,breaking down the material into smaller more manageable molecules
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breaking down the material into smaller more manageable molecules

Correct Answer:polymerisation,creating long chains of monomers
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creating long chains of monomers

Q2.
Explain the term fractional distillation.
Correct answer: separating component parts of a mixture
creating greenhouse gases
breaking components into smaller molecules
joining many molecules
Q3.
Materials that are not naturally occurring and need to be manufactured by humans are called ...
Correct Answer: synthetic
Q4.
What are the properties of polypropylene?
Correct answer: flexible
good electrical conductivity
Correct answer: good chemical resistance
elastic
Correct answer: good heat and freeze resistance
Q5.
What kind of process is injection moulding?
Correct answer: reforming
deforming
fabrication
wasting
Q6.
The advantages of injection moulding are:
Correct answer: Complex shapes can be made.
The moulds are a specialist job which takes time.
Correct answer: It features high-speed production.
There are expensive set up costs.
Correct answer: Large quantities of identical products can be made.