Sun|trek is an educational website about the Sun, our star, and its effect on the Earth's environment. It has been produced by a team of solar research scientists, working with teachers and educators. It is closely linked to the UK school curriculum Sun|trek have produced projects for schools, at Key Stage 4, using...

This Unilever Laboratory Experiment, published in 1967, describes an experiment to measure the contraction of hair in a hot solution of phenol. The procedure is based on a school-made apparatus to measure the changes of length. The results are discussed in terms of hydrogen bonding and disulphide bonds between...

From The Centre for Industry Education Collaboration (CIEC), these activities investigate the crystallisation of sugar in the fondant of creme eggs.

Complaints of 'glass' in creme eggs, and other sugar confectionery products, are sometimes the result of the growth of very large crystals of sugar. In these...

The Prep Room plays a crucial role in the Royal Institution’s public communication of science. It is where all the equipment and demonstrations are prepared for Royal Institution events - not least the annual Christmas Lectures. This series provides a range of hands-on experiments and demonstrations across a full...

This Problem Solving with Industry module was devised by the Centre for Science Education in collaboration with ICI Huddersfield. The problem presented by this module is to find ways to control the colour and acidity of the effluent from a manufacturing plant which will...

Details of this challenging experiment were published in this leaflet from the Unilever Laboratory Experiment in 1965. Requirements included a pyrophoric nickel catalyst supplied by Unilever, hydrogen from a cylinder and a vegetable oil treated with activated charcoal to remove impurities. The necessary apparatus...

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...