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How do you judge whether a product is kind to the environment and the people who make and use it?

Evaluate a product for its impact on the environment and society, using ideas such as the 6 Rs and material life cycle

A clear answer to the N(A)-Level D&T outcome on sustainability. Judging a product against the 6 Rs, thinking about a material's life cycle from source to disposal, and balancing environmental and social impact with cost.

Generated by Claude Opus 4.88 min answer

Reviewed by: AI editorial process; not yet individually human-reviewed

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  1. What this dot point is asking
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  3. Examples in context
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What this dot point is asking

SEAB wants you to evaluate a product for its impact on the environment and on society, using ideas such as the 6 Rs and the life cycle of its materials. Sustainability asks a different question from "does it work?": it asks "what does this product cost the planet and people?". The skill is judging a product against these ideas and suggesting greener choices.

The answer

The 6 Rs

The 6 Rs are a checklist for designing and judging products more sustainably:

  • Rethink. Could the problem be solved in a completely different, greener way?
  • Refuse. Avoid materials or features that harm the environment or are not needed.
  • Reduce. Use less material and energy, for example thinner but still strong parts.
  • Reuse. Design so the product or its parts can be used again.
  • Repair. Design so broken parts can be replaced rather than the whole product thrown away.
  • Recycle. Choose materials that can be recycled, and avoid mixing materials that cannot be separated.

A sustainable product scores well against several of these.

The life cycle of a material

Every material has a life cycle: its whole journey through

  1. getting the raw material (mining, growing, drilling),
  2. making it into the product,
  3. using the product, and
  4. disposing of it or recycling it at the end.

Each stage uses energy and creates waste. A designer should think about all four, choosing a material that is easier to obtain, lasts longer in use, and can be recycled at the end, which lowers the total impact.

Social impact

Sustainability is not only about the environment. A product also affects people: are the materials made safely and fairly, is the product safe and healthy to use, does it serve a real need rather than waste? Considering people as well as the planet gives a fuller evaluation.

Balancing with cost

Greener choices sometimes cost more or are harder to source. A good evaluation is honest about the trade-off: it suggests the most sustainable choice that still meets the specification and budget, rather than ignoring cost altogether.

Examples in context

Example 1. A drinks bottle. Evaluated against the 6 Rs, a refillable bottle scores on reuse and reduce because it replaces many single-use bottles, and choosing one recyclable plastic rather than a mix means it can be recycled at the end of its life.

Example 2. Designing for repair. A lamp is assembled with screws rather than glue, so a blown part can be replaced instead of binning the whole lamp. This applies "repair" and extends the product's life, improving its life-cycle impact.

Try this

Q1. List four of the 6 Rs. [2 marks]

  • Cue. Any four of rethink, refuse, reduce, reuse, repair, recycle.

Q2. State the four main stages of a material's life cycle. [2 marks]

  • Cue. Getting the raw material, making the product, using it, and disposing of or recycling it.

Q3. Explain how designing a product to be repaired helps the environment. [3 marks]

  • Cue. A repairable product lets a broken part be replaced instead of throwing the whole product away, so it lasts longer, creates less waste, and saves the energy and materials of making a replacement.

Exam-style practice questions

Practice questions written in the style of SEAB exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.

Original6 marksThe 6 Rs are a way to design more sustainably. List four of the 6 Rs, and for each give one example of how a designer could apply it to a product.
Show worked answer →

Four of the 6 Rs (rethink, refuse, reduce, reuse, repair, recycle), with examples:

Reduce: use less material, for example by making the walls of a box thinner but still strong.

Reuse: design so the product or its parts can be used again, for example a jar that becomes a storage container.

Repair: design so a broken part can be replaced, for example using screws so a part can be swapped rather than gluing it in.

Recycle: choose a material that can be recycled, for example a single type of plastic marked for recycling rather than mixed materials.

What markers reward: four correct Rs and a sensible, specific example of applying each to a real product. Vague answers without examples score less.

Original4 marksExplain what is meant by the 'life cycle' of a material in a product, and why a designer should think about it.
Show worked answer →

The life cycle of a material is its whole journey: getting the raw material, making it into the product, using the product, and finally disposing of it or recycling it. A designer should think about it because each stage uses energy and creates waste, so choosing a material that is easier to get, lasts longer in use, and can be recycled at the end reduces the total impact on the environment.

What markers reward: the life cycle as the stages from raw material through making and use to disposal or recycling, and the reason that thinking about all stages lets the designer reduce energy use and waste overall.

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