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I have produced a series of lessons for a lower ability Combined Science class on the topic of organic chemistry. This is the second lesson on fractional distillation. The powerpoint is written in comic sans font and simple coloured background to make the visual clues easier for students. The lesson includes key basic ideas but it would be easy to slot in more complex ideas if required for a higher ability group. There is a matching student sheet to minimise the writing requirement Credit to other TES contributors who have provided me with ideas.