Source: https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-7-1-materials [Revision notes](https://senecalearning.com/en-gb/revision-notes.md) › [GCSE](https://senecalearning.com/en-gb/revision-notes/gcse.md) › [Design & Technology](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology.md) › [AQA](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa.md) › Materials # Materials Design & Technology: AQA GCSE, topic 7.7.1 ## Choosing Your Materials To manufacture your prototype you need to think about which materials you would choose to make your prototype and also think about which materials you would use to make the product in real life. ### Manufacturing your prototype ![Manufacturing your prototype](https://image-v2.cdn.app.senecalearning.com/2018-08/519f28eb-0bdc-4219-a0f7-505686d8ee8f/kid-child-naughty.jpg) - To manufacture your prototype you need to think about which materials you would choose to make your prototype and also think about which materials you would use to make the product in real life. - Due to budget and time constraints, the prototype you make at school could be different from what the real thing would be made from. But this needs to be discussed and evident in your design development section. ### Function ![Function](https://image-v2.cdn.app.senecalearning.com/courseImages/chemistry/7.1.1%20Crude%20oil/kettle-653673_640-min.jpg) - The function of a material is really important. - You should think about whether it will work without breaking. For example, you wouldn't make a kettle out of something that could melt. ### Properties ![Properties](https://image-v2.cdn.app.senecalearning.com/2018-03/2246beb9-5da9-4f17-8dbb-74da7fca77fb/shutterstock_317321327.jpg) - Knowing the properties of your chosen materials is really important. - You may need to test out the materials before you finally select them. - This does not always mean how strong they are but how easy it is to join them together or to paint. ## How Your Prototype Will Function Consider how each part of your prototype will function. ### Consider: ![Consider:](https://image-v2.cdn.app.senecalearning.com/2018-07/5ab14db4-67d1-4c14-b432-27f034d8b733/Arm-Wrestle-ArmWrestle-Arms-Hands-Power-Struggle-.jpg) - Strength - will it be long lasting and not break from wear and tear? - Movement - is it durable and flexible enough for its job? - Electrical and thermal - does it need to allow electricity or heat to transfer through it or not? - Cost - is it an acceptable cost? Are there cheaper alternatives? ### Aesthetics ![Aesthetics](https://image-v2.cdn.app.senecalearning.com/2019-03/7b502065-4bf1-41c4-aa86-e94f24ec94f4/mdf-board-dt-.jpg) - Aesthetics - how the material looks or can be finished is important because you want your prototype to look at much like your final design as possible. - For example MDF provides a different quality of finish when painted compared to softwoods with a grain. ### Environment ![Environment](https://image-v2.cdn.app.senecalearning.com/2019-03/70191c2a-93de-4dae-b816-84b6f8664e0d/recycle-.jpg) - Environment - is the material you are choosing environmentally friendly? - Is it made from recycled material or can it be recycled? - How will the material be processed at the end of the product life? - Can it be re-used rather than go to landfill? ### Ethical and social factors ![Ethical and social factors](https://image-v2.cdn.app.senecalearning.com/2019-03/c464d445-62df-4737-920a-1520511428c7/fsc-logo-forest-.jpg) - Supporting products that are fair trade (the people making the materials get a fair wage). - Timber that is from an ethical source and not from cutting down rainforests - for example, the Forestry Stewardship Council (FSC) - means the planet's resources are not being used up without consideration. ### Cultural factors ![Cultural factors](https://image-v2.cdn.app.senecalearning.com/courseImages/biology/2.4.1%20-%20Heart%20diseases/rest-min%20-%20Edited.jpg) - Cultural factors - for example before the 1980s animal fur such as fur coats were fashionably acceptable, however today many people would not buy products that are made using animal fur. ### Availability and access ![Availability and access](https://image-v2.cdn.app.senecalearning.com/courseImages/chemistry/10.3.1%20Using%20materials/fibre-1562702_640-min.jpg) - Availability and access to your chosen materials or components are really important. - There is no point choosing a material that you cannot easily get hold of during your manufacturing. - Components such as bolts, fasteners, buttons, LEDs need to be selected if you can access them and not wait weeks for them to arrive. - This should be decided on when modelling so you know you will have them for your final prototype. ## Test yourself on Materials - What does FSC stand for? [Practise this topic for free](https://app.senecalearning.com/classroom/course/b4e64de8-a5d1-411b-81e2-aa4e2016e908/section/a0b17c0d-ca53-45a8-b75e-383e12344ff5/session) - Previous topic: [7.6.1 Prototype Development](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-6-1-prototype-development.md) - Next topic: [7.8.1 Tolerances](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-8-1-tolerances.md) ## Design & Technology: AQA GCSE contents ### 1 Core Technical Principles - 1.1 New & Emerging Technologies - [1.1.1 Industry](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-1-industry.md) - [1.1.2 Enterprise](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-2-enterprise.md) - [1.1.3 Sustainability](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-3-sustainability.md) - [1.1.4 People](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-4-people.md) - [1.1.5 Culture & Society](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-5-culture-and-society.md) - [1.1.6 Environment](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-6-environment.md) - [1.1.7 Production Techniques & Systems](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-7-production-techniques-and-systems.md) - [1.1.8 Emerging Technologies & Design](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-8-emerging-technologies-and-design.md) - [1.1.9 End of Topic Test - New & Emerging Technologies](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-9-end-of-topic-test-new-and-emerging-technologies.md) - [1.1.10 Exam-Style Questions - Emerging Technologies](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-1-10-exam-style-questions-emerging-technologies.md) - 1.2 Energy Generation & Storage - [1.2.1 Fossil Fuels & Nuclear](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-2-1-fossil-fuels-and-nuclear.md) - [1.2.2 Renewable Energy](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-2-2-renewable-energy.md) - [1.2.3 Energy Storage Systems](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-2-3-energy-storage-systems.md) - 1.3 Developments in New Materials - [1.3.1 Modern Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-3-1-modern-materials.md) - [1.3.2 Smart Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-3-2-smart-materials.md) - [1.3.3 Exam-Style Questions - Smart Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-3-3-exam-style-questions-smart-materials.md) - [1.3.4 Composite Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-3-4-composite-materials.md) - [1.3.5 Technical Textiles](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-3-5-technical-textiles.md) - 1.4 Systems Approach to Designing - [1.4.1 Inputs](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-4-1-inputs.md) - [1.4.2 Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-4-2-processes.md) - [1.4.3 Outputs](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-4-3-outputs.md) - [1.4.4 Looped Systems](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-4-4-looped-systems.md) - 1.5 Mechanical Devices - [1.5.1 Types of Movement](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-5-1-types-of-movement.md) - [1.5.2 Levers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-5-2-levers.md) - [1.5.3 Linkages](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-5-3-linkages.md) - [1.5.4 Rotary Systems](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-5-4-rotary-systems.md) - [1.5.5 End of Topic Test - Designing & Mechanical Devices](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-5-5-end-of-topic-test-designing-and-mechanical-devices.md) - 1.6 Materials Categories - [1.6.1 Timbers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-1-timbers.md) - [1.6.2 Metals & Alloys](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-2-metals-and-alloys.md) - [1.6.3 Metals & Alloys 2](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-3-metals-and-alloys-2.md) - [1.6.4 Polymers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-4-polymers.md) - [1.6.5 Polymer Types](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-5-polymer-types.md) - [1.6.6 Textiles](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-6-textiles.md) - [1.6.7 Textile Types: Fibres](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-7-textile-types-fibres.md) - [1.6.8 Textile Types: Weave](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-8-textile-types-weave.md) - [1.6.9 Paper & Boards](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-6-9-paper-and-boards.md) - 1.7 Material Properties - [1.7.1 Physical & Working Properties](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-7-1-physical-and-working-properties.md) - [1.7.2 End of Topic Test - Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-7-2-end-of-topic-test-materials.md) - [1.7.3 Exam-Style Questions - Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/1-7-3-exam-style-questions-materials.md) ### 2 Paper & Board: Specialist Technical Principles - 2.1 Selection of Materials - [2.1.1 Paper & Boards](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-1-1-paper-and-boards.md) - [2.1.2 Working with Paper & Boards](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-1-2-working-with-paper-and-boards.md) - 2.2 Paper & Board: Forces & Stresses - [2.2.1 Paper & Board: Forces & Stresses](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-2-1-paper-and-board-forces-and-stresses.md) - [2.2.2 Cardboard & Paper](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-2-2-cardboard-and-paper.md) - 2.3 Paper & Board: Ecological & Social Footprint - [2.3.1 Paper & Board: Ecological & Social Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-3-1-paper-and-board-ecological-and-social-footprint.md) - [2.3.2 Paper & Board: The Six Rs](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-3-2-paper-and-board-the-six-rs.md) - [2.3.3 Social Issues](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-3-3-social-issues.md) - 2.4 Paper & Board: Sources & Origins - [2.4.1 Paper & Board](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-4-1-paper-and-board.md) - [2.4.2 End of Topic Test - Paper & Board](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-4-2-end-of-topic-test-paper-and-board.md) - 2.5 Paper & Board: Using Materials - [2.5.1 Paper & Board: Properties of Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-5-1-paper-and-board-properties-of-materials.md) - [2.5.2 Paper & Board: Modification of Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-5-2-paper-and-board-modification-of-materials.md) - [2.5.3 Paper & Board: Shape & Form](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-5-3-paper-and-board-shape-and-form.md) - 2.6 Paper & Board: Stock Forms, Types & Sizes - [2.6.1 Paper & Board: Forms](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-6-1-paper-and-board-forms.md) - [2.6.2 Paper & Board: Types](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-6-2-paper-and-board-types.md) - [2.6.3 Paper & Board: Sizes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-6-3-paper-and-board-sizes.md) - [2.6.4 Paper & Board: Standards Components](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-6-4-paper-and-board-standards-components.md) - 2.7 Paper & Board: Scales of Production - [2.7.1 Paper & Board: Scales of Production](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-7-1-paper-and-board-scales-of-production.md) - [2.7.2 Exam-Style Questions - Scales of Production](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-7-2-exam-style-questions-scales-of-production.md) - 2.8 Paper & Board: Specialist Techniques & Processes - [2.8.1 Paper & Board: Techniques & Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-8-1-paper-and-board-techniques-and-processes.md) - [2.8.2 Paper & Board: Quality Control](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-8-2-paper-and-board-quality-control.md) - 2.9 Paper & Board: Surface Treatments & Finishes - [2.9.1 Paper & Board: Surface Treatments & Finishes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-9-1-paper-and-board-surface-treatments-and-finishes.md) - [2.9.2 End of Topic Test - Specialist Techniques](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/2-9-2-end-of-topic-test-specialist-techniques.md) ### 3 Timber: Specialist Technical Principles - 3.1 Timber: Selection of Materials - [3.1.1 Timber Based Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-1-1-timber-based-materials.md) - [3.1.2 Timber: Environment & Ethics](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-1-2-timber-environment-and-ethics.md) - 3.2 Timber: Forces & Stresses - [3.2.1 Timber: Forces & Stresses](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-2-1-timber-forces-and-stresses.md) - [3.2.2 Timber](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-2-2-timber.md) - 3.3 Timber: Ecological & Social Footprint - [3.3.1 Timber: Ecological & Social Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-3-1-timber-ecological-and-social-footprint.md) - [3.3.2 Timber: The Six Rs](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-3-2-timber-the-six-rs.md) - [3.3.3 Timber: Social Issues](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-3-3-timber-social-issues.md) - [3.3.4 Exam-Style Questions - Timber](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-3-4-exam-style-questions-timber.md) - 3.4 Timber: Sources & Origins - [3.4.1 Timber](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-4-1-timber.md) - [3.4.2 Timber: Processing & Seasoning](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-4-2-timber-processing-and-seasoning.md) - [3.4.3 Manufactured Board](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-4-3-manufactured-board.md) - [3.4.4 End of Topic Test - Timber](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-4-4-end-of-topic-test-timber.md) - 3.5 Timber: Using Materials - [3.5.1 Timber: Properties of Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-5-1-timber-properties-of-materials.md) - [3.5.2 Timber: Modification of Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-5-2-timber-modification-of-materials.md) - [3.5.3 Timber: Shape & Form](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-5-3-timber-shape-and-form.md) - [3.5.4 Timber: Shape & Form 2](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-5-4-timber-shape-and-form-2.md) - 3.6 Timber: Stock Forms, Types & Sizes - [3.6.1 Timber: Stock Forms, Types & Sizes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-6-1-timber-stock-forms-types-and-sizes.md) - 3.7 Timber: Scales of Production - [3.7.1 Timber: Scales of Production](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-7-1-timber-scales-of-production.md) - 3.8 Timber: Specialist Techniques & Processes - [3.8.1 Timber: Tools, Equipment & Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-8-1-timber-tools-equipment-and-processes.md) - [3.8.2 Timber: Tools, Equipment & Processes 2](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-8-2-timber-tools-equipment-and-processes-2.md) - [3.8.3 Timber: Quality Control](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-8-3-timber-quality-control.md) - 3.9 Timber: Surface Treatments & Finishes - [3.9.1 Timber: Surface Treatments](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-9-1-timber-surface-treatments.md) - [3.9.2 Timber: Finishes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-9-2-timber-finishes.md) - [3.9.3 End of Topic Test - Specialist Techniques](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/3-9-3-end-of-topic-test-specialist-techniques.md) ### 4 Metal: Specialist Technical Principles - 4.1 Metals: Selection of Materials - [4.1.1 Metal-Based Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-1-1-metal-based-materials.md) - [4.1.2 Ferrous Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-1-2-ferrous-metals.md) - [4.1.3 Non-Ferrous Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-1-3-non-ferrous-metals.md) - [4.1.4 Alloys](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-1-4-alloys.md) - [4.1.5 Metals: Environment & Ethics](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-1-5-metals-environment-and-ethics.md) - 4.2 Metals: Forces & Stresses - [4.2.1 Metals: Forces & Stresses](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-2-1-metals-forces-and-stresses.md) - 4.3 Metals: Ecological & Social Footprint - [4.3.1 Metals: Ecological Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-3-1-metals-ecological-footprint.md) - [4.3.2 Metals: Social Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-3-2-metals-social-footprint.md) - [4.3.3 Metals: The Six R's](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-3-3-metals-the-six-rs.md) - [4.3.4 Metals: Social Issues](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-3-4-metals-social-issues.md) - 4.4 Metals: Sources & Origins - [4.4.1 Origins of Metal](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-4-1-origins-of-metal.md) - [4.4.2 Processing Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-4-2-processing-metals.md) - 4.5 Metals: Alloy-Based Materials - [4.5.1 Types of Metal Alloys](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-1-types-of-metal-alloys.md) - [4.5.2 Alloying Elements](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-2-alloying-elements.md) - [4.5.3 Properties & Benefits](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-3-properties-and-benefits.md) - [4.5.4 Processing & Fabrication](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-4-processing-and-fabrication.md) - [4.5.5 Applications of Alloys](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-5-applications-of-alloys.md) - [4.5.6 Metal Alloys in Industry](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-6-metal-alloys-in-industry.md) - [4.5.7 Applications of Metal Alloys](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-5-7-applications-of-metal-alloys.md) - 4.6 Metals: Using Materials - [4.6.1 Properties of Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-6-1-properties-of-metals.md) - [4.6.2 Modification of Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-6-2-modification-of-metals.md) - [4.6.3 Metals: Shape & Form](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-6-3-metals-shape-and-form.md) - 4.7 Metals: Scales of Production - [4.7.1 Metals: Scales of Production](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-7-1-metals-scales-of-production.md) - 4.8 Metals: Specialist Techniques & Processes - [4.8.1 Metals: Tools](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-8-1-metals-tools.md) - [4.8.2 Metals: Tools & Equipment](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-8-2-metals-tools-and-equipment.md) - [4.8.3 Metals: Cutting, Forming & Machining Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-8-3-metals-cutting-forming-and-machining-processes.md) - [4.8.4 Metals: Joining, Casting & Heat Treatment Process](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-8-4-metals-joining-casting-and-heat-treatment-process.md) - 4.9 Metals: Quality Control - [4.9.1 Metals: Quality Control](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-9-1-metals-quality-control.md) - [4.9.2 Metals: Quality Control Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-9-2-metals-quality-control-processes.md) - 4.10 Metals: Surface Treatments & Finishes - [4.10.1 Metals: Surface Treatments](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-10-1-metals-surface-treatments.md) - [4.10.2 Metals: Surface Treatments for Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-10-2-metals-surface-treatments-for-metals.md) - [4.10.3 Metals: Finishes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-10-3-metals-finishes.md) - [4.10.4 Metals: Finishing Techniques for Metals](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/4-10-4-metals-finishing-techniques-for-metals.md) ### 5 Polymers: Specialist Technical Principles - 5.1 Polymers - [5.1.1 Polymers: Functionality & Aesthetics](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-1-1-polymers-functionality-and-aesthetics.md) - [5.1.2 Polymers: Environment & Ethics](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-1-2-polymers-environment-and-ethics.md) - [5.1.3 Polymers: Sources, Origins & Properties](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-1-3-polymers-sources-origins-and-properties.md) - [5.1.4 Polymers: Forces & Stresses](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-1-4-polymers-forces-and-stresses.md) - [5.1.5 Polymers: Ecological & Social Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-1-5-polymers-ecological-and-social-footprint.md) - [5.1.6 Polymers: The Six R's](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-1-6-polymers-the-six-rs.md) - 5.2 Polymer Categories - [5.2.1 Categories of Polymers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-2-1-categories-of-polymers.md) - [5.2.2 Thermoforming Polymers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-2-2-thermoforming-polymers.md) - [5.2.3 Thermosetting Polymers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-2-3-thermosetting-polymers.md) - 5.3 Polymer Forms - [5.3.1 Polymers: Stock Forms](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-3-1-polymers-stock-forms.md) - [5.3.2 Polymers: Shape & Form](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-3-2-polymers-shape-and-form.md) - 5.4 Polymer Production, Techniques & Quality Control - [5.4.1 Polymers: Scales of Production](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-4-1-polymers-scales-of-production.md) - [5.4.2 Polymers: Specialist Techniques & Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-4-2-polymers-specialist-techniques-and-processes.md) - [5.4.3 Polymers: Quality Control Systems: Tolerance](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-4-3-polymers-quality-control-systems-tolerance.md) - [5.4.4 Polymers: Finishes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/5-4-4-polymers-finishes.md) ### 6 Textiles: Specialist Technical Principles - 6.1 Textile Materials - [6.1.1 Origin of Textiles](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-1-1-origin-of-textiles.md) - [6.1.2 Textile Industry](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-1-2-textile-industry.md) - 6.2 Selection of Materials - [6.2.1 Natural Fibres](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-2-1-natural-fibres.md) - [6.2.2 Synthetic Fibres](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-2-2-synthetic-fibres.md) - [6.2.3 Environmental Concerns](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-2-3-environmental-concerns.md) - [6.2.4 Environmental Impact](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-2-4-environmental-impact.md) - [6.2.5 Ethical Challenges](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-2-5-ethical-challenges.md) - 6.3 Forces & Stresses - [6.3.1 Forces & Stresses](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-3-1-forces-and-stresses.md) - 6.4 Ecological & Social Footprint - [6.4.1 Ecological Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-1-ecological-footprint.md) - [6.4.2 Social Footprint](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-2-social-footprint.md) - [6.4.3 Addressing Ecological & Social Footprints](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-3-addressing-ecological-and-social-footprints.md) - [6.4.4 The Six R's](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-4-the-six-rs.md) - [6.4.5 Labour Conditions](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-5-labour-conditions.md) - [6.4.6 Social Issues](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-6-social-issues.md) - [6.4.7 Addressing Social Issues](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/6-4-7-addressing-social-issues.md) ### 7 Designing & Making Principles - 7.1 Investigation & Data - [7.1.1 Iterative Design](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-1-iterative-design.md) - [7.1.2 Primary & Secondary Data](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-2-primary-and-secondary-data.md) - [7.1.3 Market Research](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-3-market-research.md) - [7.1.4 Ergonomics](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-4-ergonomics.md) - [7.1.5 Specifications](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-5-specifications.md) - [7.1.6 End of Topic Test - Investigation & Data](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-6-end-of-topic-test-investigation-and-data.md) - [7.1.7 Exam-Style Questions - Specifications](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-1-7-exam-style-questions-specifications.md) - 7.2 Environmental, Social & Economic Challenges - [7.2.1 Challenges](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-2-1-challenges.md) - [7.2.2 Your Research](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-2-2-your-research.md) - 7.3 The Work of Others - [7.3.1 Designers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-1-designers.md) - [7.3.2 Architects](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-2-architects.md) - [7.3.3 Product Design](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-3-product-design.md) - [7.3.4 Industrial Designers](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-4-industrial-designers.md) - [7.3.5 Product Design Companies](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-5-product-design-companies.md) - [7.3.6 Textile Design Companies](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-6-textile-design-companies.md) - [7.3.7 End of Topic Test - The Work of Others](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-3-7-end-of-topic-test-the-work-of-others.md) - 7.4 Design Strategies - [7.4.1 Design Strategies](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-4-1-design-strategies.md) - 7.5 Communication of Design Ideas - [7.5.1 Design Communication](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-5-1-design-communication.md) - 7.6 Prototype Development - [7.6.1 Prototype Development](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-6-1-prototype-development.md) - 7.7 Selection of Materials - [7.7.1 Materials](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-7-1-materials.md) - 7.8 Tolerances - [7.8.1 Tolerances](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-8-1-tolerances.md) - 7.9 Material Management - [7.9.1 Managing Material](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-9-1-managing-material.md) - [7.9.2 Tools](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-9-2-tools.md) - 7.10 Specialist Equipment - [7.10.1 Health & Safety](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-10-1-health-and-safety.md) - 7.11 Specialist Techniques & Processes - [7.11.1 Specialist Techniques & Processes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-11-1-specialist-techniques-and-processes.md) - [7.11.2 Surface Finishes](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-11-2-surface-finishes.md) - [7.11.3 End of Topic Test - Designing & Making](https://senecalearning.com/en-gb/revision-notes/gcse/design-and-technology/aqa/7-11-3-end-of-topic-test-designing-and-making.md)