separating substances using filtration, evaporation,
distillation and paper chromatography
OC2 separate mixtures using a variety of techniques: filtration, evaporation, distillation and paper chromatography
OC30 conduct a qualitative experiment to detect the presence of dissolved solids in water samples, and test water for hardness (soap test)
OC32 carry out a simple distillation, and obtain a sample of water from sea-water
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