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Resistant Materials 01
What do insects and fungi do to wood?

Resistant Materials 01

Materials choice matters in every product. Learn how wood, metals, and plastics behave, then use that knowledge to pick safer, stronger, longer-lasting materials for real designs.

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Fascinating Fact:

Grain direction matters in timber, because wood can split more easily along the grain. Cutting and joint choices often depend on which way the grain runs.

In KS3 D and T, pupils explore resistant materials and why they are chosen for different products. You learn to compare properties such as strength, toughness, flexibility, and resistance to wear, then select suitable materials for a specific purpose.

Key Terms

  • Property: A measurable characteristic of a material, such as hardness, strength, density, or how well it resists corrosion.
  • Toughness: A material’s ability to absorb impact without breaking, which matters for products that may be dropped or knocked.
  • Corrosion: Damage to a material caused by a chemical reaction, such as rusting in iron or steel when exposed to air and moisture.

Frequently Asked Questions (Click to see answers)

What are resistant materials in KS3 Design and Technology?

Resistant materials in KS3 D and T are materials used to make products that must be durable and practical, such as woods, metals, and polymers. You study how their properties affect performance and safety.

How do you choose the best material for a product in KS3 D and T?

You match material properties to the product’s job. For example, a handle needs toughness and grip, outdoor items need weather resistance, and food-related items need surfaces that are safe and easy to clean.

What is the difference between hardness and toughness in materials?

Hardness is resistance to scratching or indentation, while toughness is resistance to cracking or breaking under impact. A material can be hard but still brittle, so both matter in design decisions.

Try These Related Quizzes

1 .
Wood is ....... by insects and fungi.
attacked
corroded
discoloured
dissolved
Water is also a problem with some types of wood
2 .
A material with good thermal physical properties will .......
allow an electric current to flow through it
allow heat to pass through it
not bend and stretch easily
weigh a lot for its size
Metals are good conductors of heat
3 .
What does 'ferrous' mean?
Containing or consisting mainly of iron
Material that can withstand extreme cold
Material that can withstand extreme heat
Wood that has been attacked by woodworm
Fe is the symbol for the chemical element iron
4 .
A material with dense physical properties will ......
allow an electric current to flow through it
bend and stretch easily
carry a heavy load without breaking
weigh a lot for its size
Lead is very dense and it is used in the design of nuclear reactors to help to stop radiation from escaping
5 .
A transparent material is see-through. What is its opposite called?
Block
Hidden
Opaque
Solid
Translucent is in-between transparent and opaque
6 .
Resistant materials that are designed to break down naturally are known as what?
Biocompatible
Biodegradable
Biodynamic
Bioenergetic
Designing biodegradable materials helps to avoid long-term pollution. Some resistant materials e.g. wood are naturally biodegradable
7 .
Materials are affected by their surroundings. Many metals are ....... by air and water.
attacked
corroded
discoloured
dissolved
Corrosion is a chemical reaction
8 .
A material with strong physical properties will .......
allow an electric current to flow through it
bend and stretch easily
carry a heavy load without breaking
weigh a lot for its size
Steel, acrylic and nylon are all examples
9 .
A material with stiff physical properties will .......
allow an electric current to flow through it
carry a heavy load without breaking
not bend and stretch easily
weigh a lot for its size
These materials are good for making the framework of things
10 .
Many plastics become ....... with age.
discoloured
liquid
rough
rubbery
They can also become more brittle
Author:  Frank Evans (Specialist 11 Plus Teacher and Tutor)
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