Just Chemistry- The techniques
Ms. Allison Classroom Lesson 3 Evaporation Crystallization Filtration Filtration is any of various mechanical, physical or biological operations that separate solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass. The fluid that passes through is called the filtrate . Simple Distillation Fractional Distillation Paper Chromatography This is good for separating dissolved substances that have different colours, such as inks and plant dyes. It works because some o1f the coloured substances dissolve in the liquid better than others, so they travel further up the paper.