This Unilever Laboratory Experiment, published in 1970, describes the analysis of fluorescers from soap and soapless detergent powders. The procedure describes how the fluorescers can be extracted from the product, separated by thin layer chromatography techniques, and made visible by exposing the chromatograms to...

Some of the biggest challenges we face stem from how we interact with our environment, and engineering is essential to finding sustainable solutions. From renewable power to recycling, to making our homes more energy efficient, and tackling how we feed a growing population, engineering is a vital field.
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Some of the biggest challenges we face stem from how we interact with our environment, and engineering is at the heart of finding sustainable solutions. Working with water is particularly important when thinking about the environment because water sustains all life and is essential to the survival of the planet....

This Nuffield Working with Science unit aimed to excite interest in natural and built environment while encouraging students to take an interest in environmental issues.

Guidance for teachers and technicians appears...

A Year Ten module from the Salters’ double award science course. The story-line for this unit is the whole world market for manufactured chemicals and the need to transport them safely to where they are needed. This shows the importance of systems which convey concise,...

This Salters’ Chemistry Course unit from the University of York Science Education Group covered:
* The range of properties of chemicals.
* The use of symbols, formulas and balanced equations.
* The commercial importance of chemicals.
* Factors...

In this Catalyst article an experiment is described in which the formation of clouds can be replicated. The experiment requires nothing more than a plastic bottle, warm water, matches and a small thermometer.

This article...

A Catalyst article describing how to make a spectrometer to analyse light by using a CD to split the light and some other household items for the rest of the equipment.

This article is from Catalyst: Secondary Science Review 2011, Volume 21, Issue 4.

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Produced by Solar Spark, this simple activity helps to answer the simple, yet complex question: Why is the sky blue and the sunset red? It's all to do with light scattering and the Tyndall Effect and can be easily demonstrated using a suspension of milk in water.

Milk particles suspended in the water cause...

This Nuffield Working with Science unit was designed to enable students to trace the way in which the age structure of the population has changed, to gain experience in interpreting and presenting data, to identify and discuss some of the problems of the elderly, and to...

Rockets are used to launch satellites, probes and even astronauts into space. A rocket launch is extremely impressive. Thousands of kilograms are burned in just a few minutes in order to provide the force that the rocket needs in order to overcome the gravity of the Earth. Rockets provide an exciting context to...

Whey is a waste product from the cheese industry. In this experiment students upgrade whey, by converting the lactose into glucose and galactose, or by growing the microorganism K.lactis on agar containing whey.

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This Salters’ Chemistry Course unit from the University of York Science Education Group covered:
* The use of fuels in keeping warm
* The chemical changes when fuels burn
* Some consequences of the large scale use of fuels.

A Year 11 module from the Salters’ Key Stage Four double award science course. The breakdown of domestic waste is observed. A text exercises describes the processes used in a waste water plant. Natural cycles, including the carbon cycle and the nitrogen cycle are...