This Catalyst article looks at how the structure and properties of chocolate change when it is melted and re-solidified. An experiment is described in which the differences between solid chocolate, and chocolate which has been melted and re-hardened can be found, along with a detailed explanation of the physics...

Ecology is one of the titles in the series of ASE Lab Books that were published in the early 1970s for the Association for Science Education by John Murray. Each title covered one or two topics and brought together the best of the teaching notes and experimental ideas...

These resources have been produced by The Centre for Industry Education Collaboration (CIEC). Activities explore the work of people who develop and test blends of PVC for use in medical equipment.

Topics covered include how PVC is produced, why PVC is used for medical applications and how it is tested with...

Energy and Chemistry is one of the titles in the series of ASE Lab Books that were published in the early 1970s for the Association for Science Education by John Murray. Each title covered one or two topics and brought together the best of the teaching notes and...

Nathan is an environmental improvement manager at North East Lincolnshire County Council.  He looks at the impact of the council on climate change and what they can do to reduce that impact across the full range of council services.  He’s essentially an ‘eco-warrior’ for the council.

Curriculum links include...

David works for the Scottish Parliament as an environmental manager. He is responsible for trying to understand the environmental impact of the parliament, such as the amount of energy it uses.  The parliament has set itself challenging targets to reduce the amount of gas and electricity it uses through initiatives...

These materials provide examples of effective practice in equality and diversity within STEM subjects and careers. 

The non-statutory guidance containing information on what schools need to do to meet their requirements under the equality duties can be found...

Since the discovery of antibiotics, many people believe that the pathogenic microorganism threat to the population has been removed, with fatal infections and infectious diseases brought under control. This has discouraged research into drugs containing natural compounds such as essential oils. However, humans are...

The ‘Experimenting with Industry’ series was published in the mid-1980s when it presented industry-related science practicals for schools. It was developed as part of a 'teachers into industry' project organised by The Association for Science Education (ASE) on behalf...

A collection of various resources, from the Association for Science Education (ASE), set in the context of sea, the moon and chemistry of the oceans. The resources are part of the SYCD: Science Year Is There Life? collection.

'All at sea? The chemistry of the oceans' is a very attractive ten-page booklet...

This Catalyst article looks at life in extreme environments on Earth which can suggest how life might exist on Mars. One of the developments in recent years that really opened up scientists’ eyes to the possibility of life on Mars has been the realization of just how adaptable and versatile life on Earth is.

A Catalyst article investigating a few of the uses of naturally occurring oils. These oils are extracted from animal fats or plant seeds and can be turned into a variety of compounds including soaps, fuel and margarine. The article looks at oils as fuels, their use in paint and detergents and problems with their...

What do dental fillings, catalytic converters, mobile phones and jewellery have in common? They all make use of the metal palladium. This Catalyst article explains the properties of this metal, and how it can be used for a vast array of objects.

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This Catalyst article describes how food waste can be treated by anaerobic digestion to produce methane and fertiliser.

This article is from Catalyst: Secondary Science Review 2011,...