A Catalyst article about aluminium, a shiny silvery metal, which is extracted from its ore by electrolysis. Further addition of other metallic elements results in an alloy, which can be cast into various shapes using moulds. The article looks at the processes of extraction, casting, patterns, moulds and finishing...

Dallas Campbell shows how you can get involved in engineering from your own home.  T...

In this project, students compare the properties of a range of fabrics made from different fibres. The fabrics could be woven or knitted and they could be made from natural fibres such as cotton and wool or synthetic fibres such as nylon. Students should investigate physical properties, such as strength,  tear...

A Catalyst article about Quantum Tunnelling Composite, a material discovered in 1997 and whose resistance decreases dramatically under pressure. How does it work and what uses will it have? The material has been carefully characterised (to understand its composition and how it works), and its first applications...

Stephanie Kwolek invented the tough polymer Kevlar, used in protective clothing and developed a method for demonstrating the production of nylon in the classroom which is still used today.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 1.

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A Catalyst article describing the use of smart materials to help people with disabilities. Many more people with physical and mental disabilities are leading independent lives at home, thanks in part to recent technological developments. The article focuses on one project which makes use of smart materials to help...