This Unilever Laboratory Experiment describes the preparation of soap from a mixture of cooking oil and dripping. The leaflet was first published in 1964 and so lacks modern safety guidance. The procedure is authentic; it is designed to produce a convincing sample of soap. This means that it could be the basis of...

The method of preparation of a sulphonate paste described in this Unilever Laboratory Experiment is basically the same as that used by Unilever in the large-scale production of soapless detergents at the time of publication in 1964. The required reactants included an alkylbenzene hydrocarbon supplied by the...

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...

This edition of the Computing at School newsletter focuses on teaching computing in primary schools, and contains articles covering:

*Pedagogy of computing in primary schools

*National curriculum programme of study

*Game design in the primary classroom

*Primary – secondary transition...

In this resource students deal with an optimisation problem involving perimeter and area based on a Greek mythological story about a princess. She wants to maximise the area contained in a given perimeter and decides on a circle. The concept of the Isoperimetric...

Carom Maths provides this resource for teachers and students of A Level mathematics.

This presentation challenges students to use the rules they have been given to develop a logical system and deduce theorems which prove that the system is complete and consistent and introduces the idea of truth tables to...

This introductory article shows working examples of basic Python programs. It includes:

• Printing to the screen
• Comments
• Simple arithmetic
• Using variables
• Strings and string arrays
• For and While loops
• Random numbers from the Random library
• Creating a...

This resource is designed as an introduction to activities available using a Raspberry Pi computer. The introduction explains:
*what a Raspberry Pi is: a small, affordable yet powerful computer
*what can be learnt from this manual: how to perform simple programming and the basics of computer science...

A podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC). Have you ever noticed that when you cross a busy road, as well as clocking the traffic, you subconsciously follow what your neighbours do?

Scientists have recently put a figure on this and worked out that...

This activity, from the Royal Observatory Greenwich, introduces students to ways of combining errors (uncertainties) from two independent measured quantities. Using the equation for Doppler shift, the error in the rotational velocity and time period are calculated....

The Royal Academy of Engineering oversees a number of projects to enhance and enrich the teaching of engineering. This collection contains case studies and details of activities which can be used to encourage pupils to take part in engineering study.

The collection includes:

• Engineering at the...

Since 1799 the Royal Institution has been introducing new technologies and teaching science to the general public.  Their vision is " A world where everyone is inspired to think more deeply about science and its place in our lives."  They use their iconic Christmas...

The Royal Institution's 2021 Christmas Lecture - Going Viral, will be broadcast on the BBC in late December. Although the specifics of the lectures are a closely guarded secret, STEM Learning have pulled together a collection of resources from the STEM Learning eLibrary that will support...

The Royal Institution's 2022 Christmas Lectures - Secrets of forensic science, were...