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.

This Nuffield Working with Science unit encouraged students to consider water pollution problems at national and international level, by coming to understand a local example of pollution through their own investigations.

This Nuffield Working with Science unit is substantially out of date but can suggest approaches for tackling related issues now. The intention was that students should become aware of the real problems of providing sufficient potable water for all our needs by the year...

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...

This activity looks at water consumption on a local and global scale. Students learn about the main water contaminants and various methods of purification and the role of engineers and their approach to design challenges. The resource aims to inspire an interest in water conservation and to introduce students to...

This resource, from Siemens UK, encourages students to appreciate the importance of clean water and the problems that may arise in the absence of it. Students consider soluble and insoluble pollutants and methods of filtration. They then explore contamination by microorganisms, water-borne diseases and the...

This physics extension module from the Salters’ Science course covers the action of sensors and amplifiers in electronic systems. Potential dividers are studied as a way of supplying different voltages. The action of light dependent resistors and thermistors in...

This Nuffield Working with Science unit was designed to help students to appreciate why the study of weather is important. The topic was planned to cover factors that influence the weather and the reasons why weather forecasters need to collect a large amount of...

This student sheet invites students to consider lignification in detail. Students take thin sections from successive internodes of the shoot and calculate the lignification index of each section. These can then be compared with sections from other parts of the plants to consider where lignin is deposited in other...

This resource provides a set of videos and a practical investigation aimed at supporting working scientifically in the classroom and relating it to real world experiences. In the first video Professor Brian Cox joins a teacher to find out how to set up and run an investigation to find out how exercise affects heart...

This resource provides a set of videos and a practical investigation aimed at supporting working scientifically in the classroom and relating science to real world experiences. In the first video Professor Brian Cox joins a teacher to find out how to set up and run an investigation to find out what affects the...

This physics extension module from the Salters' Science course focuses on the physics and electronics behind each part of a television set. Production of electron beams and their deflection by electrical or magnetic fields are shown and students see how colours can be...

In this practical activity, from the Institution of Engineering and Technology, students investigate the properties of smart springs and see how they might be used as muscles in a robotic arm. This activity can be used as an extension to the related activity ‘...

In this experiment, from Science & Plants for Schools (SAPS), students are required to make observations about wild oat seeds. Using a petri dish, glass jar, filter paper and water, students can recreate the conditions of a greenhouse. They can then observe the changes to direction of the awn (the long hair at...

This resource looks at the impact of climate change, in particular flooding and drought, and how science can be used to mitigate against it. Students first explore perceptions about climate change, then look at ways to communicate the significance of climate change to different groups of people. They then explore...