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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.

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A Catalyst article examining the basic functioning of the eye and what can be done to maintain function when something goes wrong. In particular, the article looks at problems with focus, cataracts and colour blindness and how these problems can be detected and treated.

This article is from Catalyst: GCSE...

This Catalyst article describes how human faces contain a wealth of information about the individual - so how do we go about interpreting faces?

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

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This article explores...

This Catalyst article investigates how scientists make images using colours to represent electromagnetic radiations which humans cannot see. Human eyes detect visible light, just a small region in the electromagnetic spectrum. Using scientific instruments, many other types of radiation can be detected. Different...

A Catalyst article about encountering the fossils of the bones or shells of individual animals embedded in sedimentary rocks. This article looks at some extraordinary fossils of plants and animals preserved together in an ecosystem - it is even possible to see the cells of which they were made. The article also...

This Catalyst article looks at the use of polymers in the manufacture of household items. The exciting thing about polymers is that it is possible to make polymers behave in so many different ways by organising their long chain molecules in different ways – polymers are the ultimate designer material. The article...

Lipids are essential components of membranes and even communication.

Summary of the carbon bonds in fatty acids and triglycerides.

Fat is essential for a balanced diet – how do we process it, and what is the link with obesity?

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...

A Catalyst article about what happens as plants grow. During their growth, plants remove compounds of nitrogen, phosphorus and potassium from soil which need to be replaced to maintain the soil’s fertility. For centuries farmers have used organic manures, crop rotation or ploughed in specially grown crops; today...

This article from Catalyst focuses on dengue fever. Dengue fever is a mosquito-borne disease found in tropical areas and its range is spreading. The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 2.

Catalyst is a...

This Catalyst article looks at how exercise affects our immunity and susceptibility to infection. Recent research indicates that a person's level of physical activity affects their immune function, influencing their risk of respiratory tract infections such as a cold. Whereas moderate levels of regular exercise...

Chemists analyse the tiny traces of substances which form a fingerprint. This allows them to determine drug abuse and as well as the age, gender and diet of an individual.

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 3.

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