This Catalyst article explains the code structure of DNA and looks into how it is copied across generations.

This article is from Catalyst: GCSE Science Review 2003, Volume 14, Issue 1.

Catalyst is a science magazine for students...

A Catalyst article about people who believe that their health is affected by mobile phone radiation. The World Health Organisation has labelled this condition Idiopathic Environmental Intolerance with attribution to Electromagnetic Fields (IEI-EMF). Idiopathic describes a disease with no known cause. The article...

A Catalyst article about mobile phones. This article looks at the science behind this popular piece of technology, such as the use of radio waves, aerials and cells. The article also explains how mobile phones are able to use short aerials.

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

A Catalyst article about Dorothy Hodgkin who was a pioneering scientist, a peace activist, a mother of three and a Nobel Prize winner. The article looks at her life and work in science. She did valuable work as an X-ray crystallographer and in finding the structure of biologically important molecules such as...

This Catalyst article looks at how people lived in the past, archaeologists look at the items (artefacts) these cultures left behind. Using chemical analysis of residues in the artefacts an enormous amount of additional information can be gleaned. This article investigates early dairy farming. Analysis of tiny...

A Catalyst article about the working life of Dr Gillian Lockwood, a reproductive biologist who specialises in IVF. The article looks at the ethical issues surrounding fertility treatments for problems such as polycystic ovary syndrome.

This article is from Catalyst: GCSE Science Review 2007, Volume 17, Issue...

A Catalyst article about Chikyu, a Japanese drilling ship capable of boring through the Earth's crust. It will investigate regions where the crust is thinnest. Core samples are examined using a number of scientific techniques and they have produced useful information about areas where there is seismic activity...

A Catalyst article about preventing drink driving. Since 1980, the UK's government estimates it has saved over 20,000 lives by its campaign to reduce drink driving. The article looks at how this result is achieved and how the body copes with alcohol and how it breaks alcohol down.

This article is from...

A Catalyst article about the fruit fly which has played a succession of key roles in developments in biological science over the last 100 years as a laboratory subject in genetics.

Researchers have found that many aspects of the biochemistry of fruit flies and humans are similar. It is due to the fact that...

A Catalyst article describing how a medical drug is made into a form which works well in the body. Medicines rarely contain just one pure chemical substance. The vast majority are made of a complex mixture that contains an active ingredient (the compound that has the desired effect in the body) and compounds called...

A Catalyst article about how the study of ancient rocks and sediments can help deduce how the Earth's atmosphere has changed over billions of years. There used to be much less oxygen than there is today. This article describes how the composition of the atmosphere has changed through history; it also explains the...

A Catalyst article about careers in educational psychology. For students of psychology there are a range of career options; this article looks at the role of an educational psychologist and a typical working day.

This article is from Catalyst: GCSE Science Review 2006, Volume 16, Issue 4.

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A Catalyst article looking at climate change. In particular the science of phenology, the study of the times each year that certain life-cycle events occur, is examined. It involves recording data on when birds migrate, eggs hatch or when leaves change colour. If the climate is changing, the timing of these events...

A Catalyst article about what causes faults in electrical appliances and the wiring installations in homes, and why people receive electric shocks. How regulations can reduce the risk of electrical faults and electric shocks is also examined together with the use of fuses, fuse wire and modern RCDs (residual...

A Catalyst article about the UK's extremely reliable electricity supply system generated in power stations which burn gas or coal, or use nuclear fuel. The article looks at how this is achieved using high voltages and how the demands for power at different times of the day and year are met.

This article is...