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...

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 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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Water for Everyone Everywhere is a workshop designed to encourage pupils to explore the global challenges associated with access to safe and clean drinking water around the world. Pupils learn about the importance of water to people’s everyday lives and the role that engineering infrastructure plays in the...

The spacecraft that have orbited around Mars and landed on its surface have shown us (via images and data) that there is no liquid water on the surface of Mars. However, these satellite images have also revealed to us features that appear to have been created or carved out by flowing water. In fact, scientists feel...

Scientists must design and evaluate many ways of extracting water from the lunar permafrost before planning lunar colonies and manned missions using the moon as a base.

In this activity students will construct a solar water collector. Using the collector, students will collect and calculate the amount of...

Act 1

A video is shown of an octagonal water tank being...

Does light behave like a wave, a stream of particles or both? Scientists at the University of Oxford are taking advantage of the particle-wave duality of light to carry out work developing exciting new technologies.

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This worksheet, from the Institution of Engineering and Technology (IET), introduces students to the wave equation, giving them an understanding of some of the vocabulary and concepts used. Students use the formula: velocity (wave) = frequency x wavelength to answer the questions on the worksheet.

The...

This resource from Defence Dynamics looks at waves and the electromagnetic spectrum. The resources are split into two student activity sheets.

The ...

Due to problems in the manufacture of tinplate coils, the edge of the strip can be slightly longer than the centre. This causes a 'wave' on the wall of the coil but can be rectified by differentially stretching the strip to make the edges flat. Students are required to apply Pythagoras' theorem to find the radius...

A collection of thirty two mathematical games. The aim of each is for students to decide whether there is a winning strategy. [b]The games are[/b]: take the pegs, Tetromino chase, Solitaire, remove the cube, make it twenty-four, total 87, hedge me in, grab the last cross, sticks game, strategic darts, square chase...