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Lesson 3 of 8
  • Year 8

Working properties of materials

I can identify working properties of materials.

Lesson 3 of 8
New
New
  • Year 8

Working properties of materials

I can identify working properties of materials.

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Lesson details

Key learning points

  1. Material properties describe how a material looks, feels, and behaves.
  2. Working properties are the way in which a material responds to an external force or certain environment.
  3. Working properties are also called ‘mechanical properties’ because they relate to how materials behave when used.
  4. Working (mechanical) properties help us select materials based on their function.

Keywords

  • Working property - the way in which a material responds to an external force or certain environment; also referred to as mechanical properties

  • Force - a push, pull or twist that acts on an object

  • Material - what a product is made from

Common misconception

Physical properties and working properties are the same thing.

Physical properties describe inherent features (like density, colour, or conductivity), whereas working properties describe how a material behaves under stress (like flexibility, toughness, or hardness).


To help you plan your year 8 design and technology lesson on: Working properties of materials, download all teaching resources for free and adapt to suit your pupils' needs...

Use real-life objects (e.g. a metal spoon, a rubber band, a plastic ruler) to illustrate the difference between physical and working properties. Ask students to describe their physical properties first, then have them test their working properties by applying forces to see how they respond.
Teacher tip

Equipment

See 'Teacher tip'.

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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Prior knowledge starter quiz

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6 Questions

Q1.
Which physical property is the ability of a material to allow electricity to flow through it?

density
absorbency
Correct answer: conductivity

Q2.
What is mass usually measured in?

Correct answer: grams
mm
cm³
stone

Q3.
Which material group tends to have high absorbency?

timbers
polymers
Correct answer: textiles
metals

Q4.
Which of these materials are insulators?

Correct answer: PVC
copper
Correct answer: pine
aluminium
gold

Q5.
What is the correct definition for material?

what a product will cost
Correct answer: what a product is made from
what colour a product is
how a product is manufactured

Q6.
Material properties describe how a material looks, feels, and ...

Correct answer: behaves
costs
weighs

Assessment exit quiz

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5 Questions

Q1.
What are working properties also known as?

physical properties
Correct answer: mechanical properties
hard properties
material properties

Q2.
Which of the following is an example of a force acting on a material?

sunlight fading fabric
rain causing steel to rust
humidity making paper curl
Correct answer: cutting pine with a saw

Q3.
Identify the working properties.

conductivity
Correct answer: toughness
Correct answer: strength
absorbency
Correct answer: hardness

Q4.
Which of these materials are mouldable?

Correct answer: clay
steel
Correct answer: rubber
aluminium

Q5.
Which of these materials are malleable?

Correct answer: iron
Correct answer: copper
ABS
glass