Produced by Science & Plants for Schools (SAPS), this investigation enables students to investigate the response of leaf discs from sun and shade plants to green light

Leaf discs from a sun plant and a shade plant are put in a sodium hydrogen carbonate solution. The rate of photosynthesis is seen by how...

These two short videos, produced by the National STEM Learning Centre, illustrate the process of thermal conductivity. The first video shows a demonstration of thermal conductivity using ice, plastic and aluminium...

A pair of videos that studies the thermal insulation properties of bubble wrap. This first video allows students to see an experiment that investigates how increasing the number of layers of bubble wrap around a beaker affects the cooling of hot water. The second explains how to interpret the data, plot the graph...

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...

The properties of a transformer are investigated in this video, specifically how the number of turns on the coils affects the output. 

This teaching package, aimed at Key Stages Two and Three, investigates the science of tree rings (dendrochronology). Linked to the topics of plants and living things and their habitats, it looks at cut tree trunks to determine the age of the tree, how fast it grew and...

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 series of guides to experiments was published by Unilever between 1964 and 1973. The experiments were adapted from procedures used in Unilever laboratories at the time to show the relevance of basic and applied research in the development and testing of new consumer products. The experiments relate to topics...

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 resource, aimed at primary level, provides a complete guide to amphibians and reptiles in urban areas, including how to identify them, where to find them and how to create a habitat which encourages them to thrive.

The ID guide includes ideas on where to look to find reptiles and amphibians and tips on...

These activities provide the standard procedures for methods which may be employed to measure blood pressure at the beginning and end of a fitness programme. Methods are provided for automatic digital devices, for using a manually inflated cuff and stethoscope and for ambulatory blood pressure monitoring. 

This video is aimed at teachers and shows how to get the best out of a Van de Graaff generator. In the video, Michael de Podesta explains how the generator works and gives some tips on getting consistently good results when using the apparatus. The video concludes with a simple but effective demonstration of charge...

This video demonstrates a simple experiment to investigate the principle of moments.