This issue of Catalyst contains the following articles:

Could purple tomatoes help us be healthier?

A Catalyst article about how catalysts affect the rate of reactions and why catalysts are important in nature and in industry.

This article is from Catalyst: Secondary Science Review 2008, Volume 18, Issue 3.

Catalyst is a science magazine...

A Catalyst article describing how a car's catalytic converter works. A catalytic converter is a part of a vehicle’s exhaust system. It removes harmful substances from the exhaust gases. The article describes what a catalytic converter consists of, the reactions taking place in a car engine and the reactions...

This Catalyst article looks at the Rosetta mission: to rendezvous with Comet 67P/Churyumov-Gerasimenko where it will study the nucleus of the comet and its environment for nearly two years, and land a probe on its surface. The article also describes how gravity assists, also known as slingshot manoeuvres, are used...

This Catalyst article looks at analytical chemists, who are involved in many kinds of testing, including drug testing to catch cheats in sport.

This article is from Catalyst: Secondary Science Review 2017, Volume 27, Issue 3.

Catalyst is a...

Published in June 2002. Dyslexia affects a significant proportion of the UK population and can be a barrier to learning in science for those afflicted. There are a number of techniques teachers can employ to alleviate the problems dyslexic students face with both practical and written work in science. These have...

Working in a school without a physics specialist, Catherine contacted STEMNET for help with meeting the specifications of a new curriculum. As a result, the school gained help from a STEM Ambassador who not only explained particle physics in an accessible way but also showed how exciting careers in physics could be...

This video introduces a reliable technique to demonstrate tissue culture and totipotency, and shows how best to use this protocol with your students.

Unlike animal cells, many plant cells are totipotent, meaning that...

This collection of resources was devised and published by Association for Science Education (ASE) in the last decade of the twentieth century to celebrate the centenaries of a number of key discoveries in the history of science.

The titles

• Beyond the Visible - One Hundred Years...

This Catalyst article looks at the celebrations surrounding the life and work of Charles Darwin. Darwin was born 200 years ago and the article looks at some of the activities surrounding the bicentenary and examines his work.

This article is from Catalyst: GCSE Science Review 2009, Volume 19, Issue 4.

The lesson is guided by a presentation which introduces the symptoms of multiple sclerosis (MS) and describes the application of stem cells in the treatment of disease. Students work in groups to compare images of healthy and MS nerve cells before planning and carrying out a model drug testing investigation.

Produced in 2014, this resource looks at cell signalling when the hormone adrenaline binds to receptors on the surface of the target cell. The resource sheets describe how the original hormonal signal is amplified through a cascade reaction.