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...

From the Science and Technology Facilities Council (STFC), the 'Big questions, big experiment' wall chart describes the Large Hadron Collider (LHC) at CERN. It looks at the "big questions" about our Universe that scientists are trying to answer, and how the amazing LHC will help them to do so. The 'Tunnel to the...

As LSIS STEM Support draws to a close, the Learning Legacy document aims to share the approaches, consider the lessons learnt and signpost resources and the ongoing support infrastructure available to improve teaching and learning across STEM in the Further Education and Skills sector. The Final Impact Review shows...

The third collection of magic tricks, from Paul Curzon and Peter McOwan, is entitled ‘magic meets mistakes, machines and medicine. The five card tricks contained make use of maths and computer science theory, and are used by real magicians.

Each trick includes magician’s instructions. The theory behind each...

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-...

The work suggested in this Nuffield Working with Science unit was planned so that students should:
1. be aware of the advantages of a systematic approach to car selection and purchase
2. be aware of the legal and social responsibilities of car ownership
3...

The Naked Scientists are a group of physicists, science communicators, astronomers and researchers from Cambridge University. They use radio, live lectures and the internet to strip science down to its bare essentials and promote it to the general public.

Podcasts from the Naked Scientists are supported by...

In 2009 and 2010, the Office of Qualifications and Examinations Regulation (Ofqual) monitored a sample of the new GCE AS and A level qualifications respectively offered by the three England-based unitary awarding organisations: AQA, Edexcel and OCR. The six subjects addressed were: English Literature and Geography...

Get your pupils discussing the work of Nobel prize winner for physiology or medicine 2022, Svante Paabo, by looking at evolution and DNA sequencing with these resources.

• Evolution - For primary aged pupils looks at how organisms adapt to their environment and think about adaptations for humans that...

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...