This Catalyst article looks at what it means to say that an astronaut is 'weightless'. The article looks at how astronauts are trained in aircraft and how underwater work can also help prepare them for space travel.

This article is from Catalyst: Secondary Science Review 2008, Volume 19, Issue 1.

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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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A Catalyst article about careers in the food industry. The food and drink industries are part of a chain linking farming and growing through to food processing, manufacture and finally to the sale of food in supermarkets and restaurants. This article describes some of the many career areas in food technology...

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,...

A Catalyst article about food chains and food webs. The article studies evidence for global climate change and considers possible causes. It also explores how climate change might affect the food web, with evidence from a long-term study which started in 1931.

This article is from Catalyst: GCSE Science...

A Catalyst article about food additives. Some additives are natural and some are manufactured by the chemical industry. Some, like vitamin C, can come from either natural or artificial sources. As with every other component of food all additives are chemicals. Even organic food can contain a certain number of...

A Catalyst article looking at how insects are used to provide clues at crime scenes. Forensic entomology is the study of insects and other arthropods in a legal context. It covers many different areas, such as pests in stored food products and insect infestations in human habitations. However, the most high-profile...

A Catalyst article about careers in forensic science covering the work of the reporting officer. The article explains what it takes to become a forensic scientist and what qualities are required to join this profession.

This article is from Catalyst: GCSE Science Review 2005, Volume 16, Issue 1.

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A Catalyst article about scientists who are only beginning to understand just how complex and fascinating the relationship between trees, the carbon cycle and climate really is. This article explores how aspects of the GCSE science course relate to the latest research. It also covers the relationship between trees...

This Catalyst article looks at hydraulic fracking, the process of breaking up rocks deep underground using high-pressure water mixed with sand and chemicals. The process has been used for decades in the energy industry to free oil and gas trapped in rock formations. However, questions have been raised over the...

This Catalyst article investigates the research into artificial photosynthetic systems.

With the world’s population ever-expanding, energy demand is expected to double by 2050 and triple by 2100. In only 200 years, mankind has squandered what nature has taken hundreds of millions of years to lay down as...

This Catalyst article describes how a crewed trip to Mars and back would be very demanding, both technologically and for the people involved.

This article is from Catalyst: Secondary Science Review 2011, Volume 22, Issue 2.

Catalyst is a...

This Catalyst article investigates pollutants in the Arctic. Scientists are monitoring the accumulation of synthetic chemicals which are polluting the Arctic environment.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.

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This article focuses on the practical uses of the element Boron, including its pivotal role in heat conservation, energy conversion and storage....