With the aid of animations, ESA’s CHEOPS (CHaracterising Ex...

This issue of Catalyst contains articles on:

Body Sensors Networks

This article describes body sensor networks which are tiny electronic sensors used to monitor the movement of patients, athletes and game players.

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This Catalyst article examines the differences between fossil fuels and biofuels. At present, fossil fuels are used to provide most of our global energy requirements. Fossil fuels are a finite resource as they take millions of years to form and the remaining supplies are being used at a greater rate than can be...

In this podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC), reporters find out how satellites have revolutionised our understanding of climate change.

They provide a completely different perspective on how planet Earth works, which was impossible before the...

In this activity pupils will undertake a controlled experiment to investigate how gases in the atmosphere affect the heat in an enclosed environment, by tracking the change in temperature of a glass jar containing carbon dioxide against a control jar. They will learn about the greenhouse effect and the role of...

These diagnostic questions and response activities (contained in the zip file) support students in being able to:

• Recognise that the source of pollutants causing acid rain may be a long way from where the acid rain falls.
• Identify sources of pollution that may cause acid rain.
• Name...

This Catalyst article explains how artificial photosynthesis could provide a useful energy supply and reduce the amount of carbon dioxide in the atmosphere. Experiments are underway in labs around the world. The aim is to use the basis of Photosynthesis to recycle the huge amounts of Carbon Dioxide being emitted...

A Catalyst article explaining how carbon capture and storage can reduce the amount of carbon dioxide entering the atmosphere and may reduce the effects of climate change. Burning fossil fuels releases carbon dioxide into the atmosphere. This is a major contributor to climate change but can CO2 be captured and...

A Catalyst article about carbon dioxide which can be used as a solvent in industry, or as a regulator of blood pH. This article looks at some other uses of carbon dioxide and considers its importance in global warming. It also explains how the greenhouse effect is a natural part of the operation of the Earth's...

This simulation can be used to explore how light interacts with molecules in our atmosphere.

Sample learning objectives include:

*Explore how light interacts with molecules in our atmosphere

*Identify that absorption of light depends on the molecule and the type of light

*Relate the...

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 is one of the six Background Books published for Stage I of the Nuffield Chemistry Sample Scheme. The books were highly illustrated and designed to be attractive. This is book describes applications of chemistry.

There are four parts to this book:
*Part 1: Salts from the sea
An account of...

In this podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC), two researchers talk about the technological solutions some scientists say might have to be used to tackle climate change.

With average temperatures expected to rise by 2°C this century, and efforts...