A Catalyst article about alchemy, the study of eternal life, salvation, and the answer to the ultimate questions about life, the universe and everything. It flourished for more than 1500 years until, in the late 1600s, the beginnings of modern, scientific chemistry edged it aside. The article looks at what was...

This Catalyst article looks at the work of Alfred Russel Wallace who developed a theory of evolution in parallel with Charles Darwin; they published their findings jointly. As a scientist he was interested in lots of different things, from how different species came into existence to the question of whether ghosts...

Alison Foster has combined her education in Chemistry with her love of plants to engage in some exciting projects at the University of Oxford Botanic Gardens. This Catalyst article gives a profile of her career choices, and introduces a public engagement activity called Chemistry in the Garden.

Alison began...

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...

This Catalyst article describes an experiment with fluoride toothpaste on eggshells (as a substitute for teeth). Both teeth and eggs contain calcium compounds which can be attacked by acid. When an egg is put in vinegar the shell is weakened by the acid making it soft and more fragile. When teeth are exposed to...

A Catalyst article about ice cores from Antarctica which contain air bubbles which record the changing atmosphere. The Antarctic ice sheet is over 3 kilometres thick; ice cores enable scientists to sample each year of snow fall in sequence. This evidence is vital in understanding how the climate is changing. The...

This Catalyst article is a career interview with aerospace research engineer, and BBC Bake-Off finalist, Andrew Smyth.

Catalyst is a science magazine for students aged 14-19 years. Find out more about Catalyst magazine: www.stem.org.uk/catalyst

A Catalyst article looking at how research using animals causes heated debate. New drugs must be safety tested on two species of animals, the article looks at how many experiments use animals and how they are regulated, scientific procedures and genetically modified animals.

This article is from Catalyst:...

This article investigates how scientists at the Open University are devising ways in which dogs can interact with electronic systems including computers. The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.

Catalyst is...

This Catalyst article describes how bacterial colonies produce antibiotics and explains how their growth depends on the medium they grow on. Over sixty years ago, a Russian soil scientist called Selman Waksman discovered that soil bacteria belonging to the Streptomyces genus produce some very useful...

This article discovers how geneticists are beginning to discover the significance of junk DNA. The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.

Catalyst is a science magazine for students aged 14-19 years. Annual...

A Catalyst article about the role of environmental scientists working for a local authority. Climate change science needs to be applied to everyday life and this article explains how local authorities and their staff are often in the front line applying the science and making it work for public benefit.

This...

This Catalyst article focuses on aquaponic systems, where fish and crop plants are grown in a system designed to minimise inputs.

This article is from Catalyst: Secondary Science Review 2016, Volume 27, Issue 2.

Catalyst is a science...