Listing all results (57)

Diamonds

A Catalyst article about diamonds. The element carbon exists in a number of allotropic forms, but diamonds have always held a special allure, whether it be for their hardness or for their transparency. The article examines how they can be made artificially and looks at some of their uses.

This article is...

Do U Wan2 Tlk> ;-)

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,...

Diamond's Brilliant Light

A Catalyst article about a brilliant new light source under construction in the heart of the Oxfordshire countryside - the Diamond Light Source. Diamond will be a source of synchrotron light. Many of the everyday commodities people take for granted, from chocolate to cosmetics, from revolutionary drugs to surgical...

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.

...

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...

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...

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,...

Chemistry in a Blast Furnace

A Catalyst article about chemical reactions that occur in a blast furnace during the steelmaking process. This short article features a diagram of a blast furnace showing the active ingredients used to produce iron from ore.

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

...

Phones and Health

This Catalyst article explores whether the use of mobile phones increases the risk of cancer, including a recent study from Denmark which investigates the issue further.

This article is from Catalyst: Secondary Science Review 2011, Volume 22, Issue 2.

...

Pages

View all publishers