Students observe what happens to blood added to salt solutions of different concentrations. This is done in test tubes, although it may also be possible to observe what happens under a microscope. The students record their observations and attempt to explain what has happened to the red blood cells. They then...

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...

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...