Published by the Wellcome Trust, the ‘Big Picture’ explores issues around biology and medicine.​

This resource includes...

This Catalyst article looks at the noble gases (Group 0 or 8 in the periodic table) which are almost inert. This article shows how they were discovered through the use of fractional distillation and looks at their chemical and physical properties.

This article is from Catalyst: GCSE Science Review 2011,...

This Catalyst article investigates how humans can misjudge the weights of small dense objects and large, light objects and how their perception of weight is easily fooled.

The article is from Catalyst: Secondary Science Review 2014, Volume 24, Issue 3.

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This Catalyst article investigates the Ebola outbreak. Defeating the outbreak of the viral disease Ebola in 2014-15 required great medical effort. Antidotes and vaccines are under development.

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

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A Catalyst article about deciding right from wrong in biology. Modern science raises many ethical questions. How these questions can be answered either ethically or by coming to a personal decision is discussed. How ethical frameworks can be used to address ethical questions is applied to the case of genetically...

This article from School Science Review, describes the design, delivery, evaluation and impact of a CPD course for physics and chemistry teachers. A key aim of the course was to use the context of the James Webb Space Telescope project to inspire teachers and lead to enriched teaching of STEM subjects.

The...

This Catalyst article looks at the changing definition of the kilogram, a unit of mass and a base unit in the SI system (the International System of units). It has been found that the International Prototype Kilogram (IPK), made in 1879 and kept in a vault in Paris, has lost about 50microgrammes of mass over the...

This Catalyst article investigates the launch of the the Philae lander from the Rosetta spacecraft and its landing on Comet 67P.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.

Catalyst is a science...

This Catalyst article takes a look at the great variety of biology-related courses in universities. There are over 1,400 different university biology courses, choosing the right one for the individual student requires care. The article includes case studies about past students and the careers they have been able to...

This Catalyst article uses physics to investigate the possible causes of the sinking of the Titanic. Mike Follows explains how the hull of the Titanic was constructed to be watertight, however, the strength of the rivets used on the ship were inadequate.

The article shows how the alignment of the sun, Earth...

Almost every scientific experiment or industrial process requires a measurement of temperature. For example, the specification of the length of an object is meaningless without reference to the temperature at which the measurement was made. And all chemical and biological processes are intrinsically temperature-...

There has been a great deal of research into footedness in football. However, careful observations of what players do on the pitch reveal that the elite football heroes are much more one-footed than it was previously assumed. David Carey of Bangor University looks into the issue.

The article is from Catalyst...

This Catalyst article details how the genome of a plant called Arabidopsis has been unravelled so that this species can act as a model in genetic studies. Arabidopsis thaliana is a model species like the fruit fly Drosophila, yeast, and the bacterium Escherichia coli.  Scientists...

This Catalyst article looks at sexual selection, a form of natural selection, and the role it plays in the evolution of many organisms. The article is from Catalyst: Secondary Science Review 2014, Volume 24, Issue 4.

Catalyst is a science...

This Catalyst article looks at the production of rice, which is a staple food for billions of people. It describes how crop scientists have identified varieties of rice with favourable characteristics, such as flood resistance, and are using them to develop crops with increased yield. Such crops may help to...