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Designed for the new specification AQA GCSE( covers spec point 126.96.36.199 ) course but can be modified for other exam boards.
14 slides covering Potable water:
-the difference between potable water and pure water
-the differences in treatment of ground water and salty water
-how to carry out a simple distillation of salt solution and test the distillate to determine its purity.
-includes details of the required practical (see worksheets www.tes.com/teaching-resource/required-practical-water-purification-11771279)