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Coming to a Beach Near You!

A Catalyst article examining what causes breaking waves to leave foam on the beaches. The article explores the human impact on the environment and the changes in the growth of algae in the seas.

This article is from Catalyst: GCSE Science Review 2005, Volume 16, Issue 1.

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Can Your Mobile Phone Damage Your Health?

A Catalyst article investigating if mobile phones produce harmful radiation. The short article compares the view points of a concerned parent, protester, scientist, official report and a complacent citizen.

This article is from Catalyst: GCSE Science Review 2005, Volume 16, Issue 1.

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Albert Einstein

A Catalyst article about the life and ideas of Albert Einstein. He is most famous for his ideas on relativity which formed the theory of general relativity, in which he showed that gravity could be explained as the effect of large masses on space. After the Second World War he also worked with other scientists and...

Keeping Engines Running Smoothly

A Catalyst article about modern car engines and how they can run smoothly and propel drivers for thousands of miles without needing much attention, apart from refuelling with diesel or petrol. The engine also needs oil. The article describes engine oil, its composition and ingredients, how it works and how to...

Intensive Crop Production Systems

A Catalyst article explaining how much of the food that humans consume comes from systems in which large numbers of plants or animals are grown under closely controlled conditions, designed to maximise production. When they grow plants as crops farmers intervene in various ways to optimise growth, so that the food...

Is Salmon Good for You?

A Catalyst article examining if there are harmful chemicals in farmed fish. Oily fish such as salmon, tuna, sardines and mackerel contain plenty of protein, vitamins and the right sort of fats. They are rich in omega-3 fatty acids which are released when fats are digested. The human body uses these fatty acids to...

Atomic Force Microscope (AFM)

A Catalyst article about using an AFM to image surfaces. The article comprises an annotated diagram of the microscope.

This article is from Catalyst: GCSE Science Review 2005, Volume 16, Issue 2.

Catalyst is a science magazine for students...

Radiography - Careers

A Catalyst article about careers using radiography in medical procedures. The article looks at a typical working day for a radiographer, the types of radiography used, how to become a radiographer and the qualifications available.

This article is from GCSE Science Review 2006, Volume 16, Issue 3.

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Plants and Mineral Nutrients

A Catalyst article looking at the chemicals that are in plants and trees and the role they play in the life of the plant. Starting with photosynthesis the article moves onto naturally occurring chemicals and explains why plants need fertilisers. Growing salad crops hydroponically is also examined.

This...

Radioactivity in Medicine

A Catalyst article about radiation and the many uses it has in medicine, both in finding out what is wrong with a patient (diagnosis) and in the treatment of cancer (therapy). The radiation used in medicine can come from electromagnetic radiation or from radioactive materials such as isotopes; the scanners using...

Iron

A Catalyst article about iron, a relatively abundant element that humans have made widespread use of since the Iron Age (about 750 BC). The article explores the extraction of iron ore, the chemistry of iron and the blast furnace process.

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

Gertrude B. Elion

A Catalyst article about the life and work of Gertrude B. Elion a pioneer in anti-viral drugs. The ground breaking research methodology she used and her work in creating and investigating purine compounds lead to the development of drugs which are used in the treatment of leukaemia.

This article is from...

Cooler Times Ahead?

A Catalyst article explaining how scientists have found that the overturning circulation in the Atlantic Ocean, which maintains Europe’s moderate climate, was weaker in 2004 by 30% relative to earlier estimates. What does this mean and what impact could it have on our climate? Scientists' research and their climate...

Venus Express

A Catalyst article about the European Space Agency (ESA) which has sent the Venus Express spacecraft to explore Earth's cloudy neighbour. The purpose of the project, which is primarily to gather information about the atmosphere around Venus, is explained and is put into context with concerns about climate change on...

Minerals and Rock Structure

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...

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