This Unilever Laboratory Experiment, published in 1966, describes the use of steam distillation to separate oil from crushed cloves. The method for extracting the eugenol from the oil used carbon tetrachloride (tetrachloromethane) and so would need to be modified before this could now be done in schools and...

From the Science Museum, this resource contains a booklet of science activities using everyday ingredients, with notes for teachers. The booklet contains step-by-step instructions for science activities and experiments that are safe and easy to do in the classroom or at home. The individual activities allow...

The ASE’s LAMP Project took into account the need, expressed by HMI and government, to increase the relevance of the school science curriculum to the needs of society at a time of rapid societal and technological change. This electronics unit was devised with the...

This Topic Brief was published as part of the ASE’s LAMP Project. This unit was developed from work carried out with non-academic boys and girls in the age range 14 to 16 years. It was tried with some success on groups of between 12 and 15 in an urban comprehensive school of 1750 pupils. The average reading age of...

If there is life elsewhere in our solar system it’s likely to live in a pretty cold environment. In this resource, students investigate the effect of antifreeze on the freezing point of water and how it can allow fragile cells to survive extreme cold. In the video, Judith Green explains how students can plan an...

This activity, produced by Solar Spark, uses "magic dye", a mixture of three different dye molecules. The mixture contains a yellow disperse dye, a direct blue dye and an acid red dye. When a fabric is put into the mixture, the dyes only attach to the types of fabrics they can bond well with. For example, the blue...

This Catalyst article describes how to make ice cream using a mixture of ice and salt, without the need of a freezer. Detailed instructions and an explanation of how it works is included, as well as a link to a video showing how the process can be sped up using liquid nitrogen.

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This Unilever Laboratory Experiment, published in 1966, demonstrates that mineral oil and water form an oil-in-water emulsion when sodium oleate is the emulsifier, and a water-in-oil emulsion when calcium oleate is the emulsifier. Water-soluble and oil-soluble dyes are used to distinguish the two types of emulsion...