Purpose: An important form of investigation that can be difficult to manage in classrooms is ‘observation over time’. Fixed length lessons reduce the number of possibilities for observation to those changes that occur within minutes rather than hours. One solution to this problem is to use time lapse photography to...

A Catalyst article about neutrinos. Neutrinos are fundamental particles. They are tiny, a neutrino has a mass about one-millionth of the mass of an electron, and they have no electric charge. This article looks at the detection of these elusive particles which requires the use a giant detector. The one described is...

A Catalyst article about the study of electrical activity of the brain during sleep. The article looks at brain waves, REM (Rapid Eye Movement) and the effects of sleep deprivation.

This article is from Catalyst: Secondary Science Review 2008, Volume 18, Issue 4.

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This mystery explores solubility, ionic ...

This Catalyst article investigates tokamaks. A 'tokamak' is a device for generating high-temperature plasma in which nuclear fusion can occur; this may form the basis of a new generation of power stations.

The article is from Catalyst: Secondary Science Review 2015, Volume 26, Issue 1.

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Published by the Nuffield Foundation, the Nuffield Advanced Biology Topic Reviews for students were an integral part of the Advanced Biological Science materials, but each could be read on its own. Thus, students could use them for their current work, or to pursue...

The Nuffield Advanced Biology Topic Reviews for students were an integral part of the Advanced Biological Science materials, but each could be read on its own. Thus, students could use them for their current work or to pursue personal interests.

This Nuffield Working with Science unit aimed to excite interest in natural and built environment while encouraging students to take an interest in environmental issues.

Guidance for teachers and technicians appears...

This article discusses how toxic gases gases can be useful in medicine, carbon monoxide is a poisonous gas but it can also help to treat some diseases.

The article is from Catalyst: Secondary Science Review 2015, Volume 25, Issue 4.

Catalyst...

This Catalyst article presents a series of photographs from NASA Satellites tracking Hurricane Ike from space.

This article is from Catalyst: Secondary Science Review 2008, Volume 19, Issue 2.

Catalyst is a science magazine for students...

This podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC) looks at how tracking insects can help scientists forecast summer storms and floods, and the role one of Europe's key satellite missions played in the recent floods in Queensland, Australia.

The huge...

These post-16 resources are about transcription, translation and gene expression. These are part of the Post 16 genetics and genomics collection.

This video reviews how transistors work and introduces Moore’s law, i.e., the number of transistors fitted onto a chip increases exponentially with time. 

This means that the size of the transistor must reduce significantly.  However, as the buffer zone (prevents current flowing) between n-type...

This series of activities from NASA take a mathematical approach to looking at transits, eclipses and occultations. They are intended as supplementary problems for students looking for additional challenges in mathematics and physical science from age 11 to 19 years.

The problems were created to be authentic...