Resources by Catalyst

Radiation and Health

A Catalyst article about the safe use of radiation. Radioactive materials are hazardous because they give out ionising radiation. Like many scientific discoveries, radioactivity provokes a mixed reaction. Some seek to commercialise it whilst films and comic books emphasise its harmful effects. The article takes the...

Radioactive Waste Decisions

A Catalyst article about how decisions taken about controversial issues such as the sitting of a radioactive waste store. How does a government decide where to put such a dump? And how can citizens affect the decision making process? The article examines how governments try to involve their citizens in decision-...

Radioactivity and Wildlife

A Catalyst article about radioactivity that was being spread among wildlife species in the Arctic in ways that no one had detected before. The source of this radioactive contamination and how radioactivity is detected are investigated.

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

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...

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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Raspberry invasion

This Catalyst article looks at how the spread of raspberry plants has an impact on environments it is not native to, the Galápagos Islands in particular. Many non-native plants are present on the Galápagos Islands, this article shows how a...

Researching cuttlefish

This Catalyst article looks at cuttlefish which have a remarkable ability to change their appearance at high speed. But how do they do this?

This article is from Catalyst: Secondary Science Review 2016, Volume 26, Issue 4.

Risky Radiation

A Catalyst article comparing mobile phones and UV sunbeds. Mobile phones emit radiofrequency (RF) radiation. Tanning beds emit ultraviolet (UV) radiation. These are both types of non-ionising radiation. In recent years both have received considerable media coverage and they are emotive topics for the general public...

Robert Hooke

A Catalyst article about the life and work of the physicist Robert Hooke. Hooke was a man of many interests. He invented many mechanical devices, including the universal joint used in all cars and designed a balance wheel for a watch. As part of his wide ranging observations, using a microscope, he first coined the...

Safety in the Lab

A Catalyst article about practical chemistry experiments and the risks involved. The article helps in identifying, assessing and controlling the risks involved, it also includes a guide to the warning signs, labels and symbols used in laboratories.

This article is from Catalyst: GCSE Science Review 2004,...