A Catalyst article about experiments on surface tension based on a simple test that can be conducted at home or in a school classroom.

This article is from Catalyst: Secondary Science Review 2007, Volume 18, Issue 2.

Catalyst is a science...

A Catalyst article about microwaves, infrared, ultraviolet and X-rays which are all electromagnetic waves. The article looks at their different uses and why some are used to create medical images and others to treat disease. The article also explores how the electromagnetic spectrum is used by medical physicists to...

In this Catalyst article scientists investigate the basis of memory using lab animals; this can lead to insights into human memory, and treatments for people suffering deteriorating memory.

The article focuses on two aspects of memory:

*the hippocampus, the part of the brain belonging to the limbic...

A Catalyst article about careers in meteorology (weather forecasting) and climate science. The article explains the work of EMARC (Environment Monitoring and Response Centre) and provides some advice on training as a meteorologist.

This article is from Catalyst: GCSE Science Review 2004, Volume 15, Issue 2...

A Catalyst article about the rock cycle which is responsible for the formation of many different types of rocks and minerals. The article explores the formation of minerals, their chemical composition and internal structure together with the reason for mineral hardness. As silicates form a third of all known...

A Catalyst article about BepiColombo, a spacecraft which will visit Mercury, powered by a revolutionary new rocket engine technology using ion engines and using a slingshot manoeuvre to accelerate it. The development of the spacecraft is an international project and will combine exciting scientific goals exploring...

A Catalyst article looking at how modern archaeology uses analytical chemical techniques to answer questions about ancient civilisations and animals. Scientists working at the University of Bristol match compounds present in archaeological materials to those in modern plants and animals which were likely to have...

This Catalyst article looks at how the laying of telegraph cables across the ocean bed led to the science of oceanography. Over two thirds of the Earth’s surface is covered in sea which can reach depths of 11 000 metres. The article looks at the challenge of laying cables in this environment and the history of the...

A Catalyst article about nanotechnology, the science of building tiny devices. Opinions differ on the use of nanotechnology, one school of thought is that it will be the answer to many of the biggest challenges in medicine, electronics and defence, another is that it will lead to opening up a dangerous world of...

A Catalyst article providing examples of some drugs derived from natural substances. Many drugs which are commonly used today are similar to naturally occurring compounds which have been used for centuries to treat illnesses. Chemists have identified and purified these substances. By determining their molecular...

A Catalyst article about the Open-Air Laboratory (OPAL) project. Open Air Laboratories (OPAL) is an England-wide initiative that has received a grant from the Big Lottery Fund to bring scientists and local communities closer together. The project hopes to uncover new insights into the world by encouraging people to...

A Catalyst article investigating what nitrogen and its compounds are used for. Nitrogen is colourless, odourless, non-toxic and inert, and has a wide range of uses. Nitrogen makes up seventy eight per cent of the Earth’s atmosphere by volume and has a considerable influence on respiration in plants and animals. The...

This Catalyst article looks at the work of field ecologists, discussing how ecological studies require the gathering and processing of large amounts of data. This article looks at how ant populations are studied in the field and how their study can produce information about the way living organisms exist in the...

This Catalyst article looks at OIF (Ocean Iron Fertilization) a process of pouring iron into the oceans. The theory behind it is to slow climate change by using a process that already occurs naturally. Nature has a way to draw carbon dioxide (CO2) from the air down into the ocean. If the process could be speeded up...

This Catalyst article describes the work of scientists detecting changes in the oceans. The working lives of three oceanographic scientists who are investigating the Gulf Stream are examined, as is the requirement for them to work closely with experts in other fields, such as: engineers, software developers and...