A Catalyst article looking at what matter is made of. Snooker balls, plum puddings and solar systems have all featured in descriptive models of atoms. The article explores how people’s ideas about atomic structure have changed over the years by using specific examples of scientific study.

This article is...

In this Core Maths resource students are given the open-ended task of designing a snowman. Students are given some basic information about the density of different types of snow and some relevant formulae, and are asked to design a ‘life-sized’ snowman and give a full mathematical description of it.

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This e-book gives an introduction to programming in the BASIC language for middle to high school students. It can be used as: *a nine or 18 week-long introduction to programming *a brief introduction to programming concepts *an introduction to data structures for non-programmers * a brief programming project for...

Soap through the Ages was one of the first series of Unilever Educational Booklets. The booklet gives a survey of the soap industry from its beginning on the shores of the Mediterranean to the 1950s.

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Soap-Making was one of the first series of Unilever Educational Booklets. Written in the late 1950s, the booklet describes the principles of detergency and gives an account of both the batch and continuous methods of soap making.

Some of the content of this booklet was updated and represented as part of...

Soapless Detergents was one of the first series of Unilever Educational Booklets. Written in the early 1960s, the booklet gives an account of the research and development that gave rise to soapless detergents. At the time this was still a relatively new industry and the environmental concerns about some of the...

Produced by the Learning Skills Improvement Service (LSIS), this case study looks at how Preston College used a social networking site (Facebook) to engage students studying science and mathematics in more active revision strategies and thus improve success rates. It also aimed to offer support outside of class...

Two worksheet based activities that can be used to identify the impacts of technology upon people to sustain their communities in the future. The first activity considers the social impact upon sustainability with key questions to research and the second task is an analysis activity looking at cultural, economic,...

This resource consists of a series of suggested activities and dozens of topic starters for aspects of Computer Science and ICT relating to the Social, Moral, Spiritual and Cultural aspects of the subject. With questions as diverse as Do computers have intelligence? Do animals have souls? If computers are...

Stuart is a software engineer with IBM, he discusses his role in this video. The role involves writing code to test new software developing new software. An avid sport fan, having grown up in the north east, he enjoyed studying maths, physics and IT at school and continued to university to pursue software...

This document consists of presentation slides on the topic of software testing. It defines relevant keywords and explains testing methodologies. It could form a useful revision resource or comprehension questions could be designed around its contents.

A Catalyst article about the organisms which live in soil. Many, such as worms and mycorrhizal fungi, are vital for keeping soil healthy and productive. An adventurous biologist could once bank on finding new species by simply travelling to some part of the world little known to science. Darwin’s famous voyage...

Produced by Solar Spark, this is a simple practical activity that can be used to show how a solar photovoltaic cell works. During a 45-60 minute session, students make solar cells out of cheap and readily accessible materials. The mechanism behind the solar cell is similar to that used in a dye-sensitised solar...