This book from the SISCON series looks at the history of scientific theories, including evidence, prediction and creativity. It asks questions such as: What is it possible to be certain about? Are experts always right?

The coordinates of two points on a line are given. The task is to find the shortest distance from the line of a third given point. The task involves finding the equation of...

This ebook, by Roger Young, explains computers as electrical circuits consisting of switches and relays (subsequently equated to transistors). It begins with simple circuits showing how, from first principles, switches and relays work. These are then combined in increasingly complex arrangements to simulate logic...

This edition of the Computing at School newsletter contains articles covering:

*Coding and computer science

*Code Club and Computing ++

*Tips for teaching programming

*Codecademy

*Teaching encryption with spreadsheets

*Scratch sensorboards (picoboards)

*Robotics...

This is one of three readers published by the ASE's SATIS 16-19 project as a way of linking together a selection of the individual units. 'How Does Society Decide?' discusses the responsibilities of citizens in a democratic society to take part in the decisions that...

Produced by Understanding Animal Research, this information leaflet looks at the regulation of animal research in the UK. The law safeguards animals while allowing important medical research to continue.

The leaflet is useful as information for teachers and also as background or research information for...

Using the data from CensusAtSchool 2006/2007, this data analysis resource looks at trends in life expectancy in populations. Students consider both the primary data collected from CensusAtSchool and secondary data about life expectancy and major causes of death. A plenary asks students to consider what they have...

This practical activity uses a simple and convenient model of the real environment in order to demonstrate the principles of random sampling and how to estimate biodiversity. Students use different coloured sugar balls to represent different species in order to put Simpson's Diversity Index to the test, which takes...

A Catalyst article about a Kenyan scientist who is searching for better treatments for malaria, a disease which kills more than a million people in Africa each year. The article also explains some of the challenges of doing science in Africa, where funding is low. Often the illness shows a remarkable ability to...

A Catalyst article about ants. A colony consists of hundreds, even thousands, of ants working diligently and cooperatively, perhaps to kill and carry a large prey item, build a large nest structure or develop and use road-like networks for foraging. Collectively, colonies of social insects can do amazing things and...

Published by the Wellcome Trust, the 'Big Picture' explores issues around biology and medicine. This issue looks at the interplay between the biology that sculpts our form and the culture that interprets and adapts it.

Dallas Campbell talks about how bras require engineering design to enable them to be both comfortable and supportive. He explains how a bra manufacturer...