This chemistry extension module of the Salters' Science course revises and extends students’ ideas about the structure and properties of water. It deals with hardness of water, the action of soap and other detergents and properties of emulsions.

In this activity, students take the role of data analysts of the World Water Resources Board (WWRB) a fictional organisation charged with providing financial aid to countries most in need of water. They will compare the availability of water in Algeria, Jordan and Turkey. Students will determine how to fairly...

This Catalyst article investigates osmosis: when water enters or leaves plant tissue (raw potato) according to the concentration of water in its surroundings.

The article is from Catalyst: Secondary Science Review 2014, Volume 25, Issue 3.

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This Catalyst article is about a micro-hydroelectric power station on a river in Yorkshire. As oil prices soar and global warming threatens, the need for affordable green solutions to the energy crisis is ever increasing. Giant hydroelectric power stations, such as the Three Gorges Dam in China, will help to fulfil...

In this activity students consider the questions:

• How can the purity of swimming water be tested?
• What exactly is the Blue Flag award?
• How reliable are the measurements and the criteria for the Blue Flag award?
• What is the status of the quality of fresh and salt water for swimming...

In this activity students consider the questions:

• What are the main sources that cause severe water shortage in Europe?
• How different harmful elements (e.g. fertilizers, gasoline, sulphuric acid) pollute freshwater?
• What methods / strategies can be used to save water?
• What methods...

This resource pack can be used to highlight issues such as global water scarcity, the challenges people face when sourcing water and maintaining a water supply in developing countries and the role of the engineers in solving these problems. Following a quick quiz, a presentation introduces the scale of local and...

In this practical activity, students investigate the salinity of three different water samples using a multimeter. Students first calibrate their salination probe and test the salinity of their solutions. Students can be asked to suggest how errors might have appeared...

CK's job is helping people under the impact of the conflict ongoing in Yemen. In Yemen, he is managing a water and sewer programme which requires lots of engineering skill and also project management skill.

These technical briefs focus on low cost approaches to accessing clean water and sanitation. This is vital to health and well being and low costs are particularly important to poorer communities in the developing world.

Technical briefs are documents produced by Practical Action which are freely available to...

A selection of images related to water and sanitation.

Practical Action helps local communities in the developing world gain access to services such as water and sanitation, vital for a decent quality of life. Some examples of how they go about doing this and the technologies involved are demonstrated in these videos:

• Dying for a drink - solar powered...

This resource from the IET Faraday programme, supported by MEI and Tomorrow's Engineers, provides students the opportunity to explore the volume of water that passes through aqueducts.

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This video introduces Nariba, a graduate water engineer for engineering company Halcrow. Nariba performs assessments for construction projects, focusing on flood risk management. Her work...