Salty Water

Aims & Learning Outcomes

To resource the 11-14 science area ‘Materials and their Properties’ as an experimental and investigative discipline.
To provide investigations set in contexts that appeal to the target audience.
To illustrate the scientific ideas involved with the help of computer graphics, animation, real life applications and memorable demonstrations.

• To understand that mixtures, e.g. sea water, contain constituents that are not combined.
• To know about methods, including filtration, that can be used to separate mixtures into their constituents.
• To show that some chemicals dissolve in water to form a clear solution and when salt dissolves it breaks up into particles too small to see.