Task 1 Separating Substances

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Presentation transcript:

Task 1 Separating Substances 14/11/2018 Task 1 Separating Substances BTEC Level 3 Applied Science Unit 3 Assignment 1

How can we separate substances? 14/11/2018 P2 Demonstrate use of scientific techniques to separate substances. P3 Estimate the purity of samples using scientific techniques. M2 Describe the factors that influence purity D2 Evaluate the accuracy of the methods used to estimate the purity of the samples Keywords Mixture, precipitation; crystallisation; filtration; drying; distillation; solvent extraction; chromatograph y; electrophoresis; centrifugation. Define the following words Atom, Element, Compound, Mixture

Why do we need to separate substances? You’ve been given a mixture of Sand Salt Iron Fillings Sugar Water How can you separate them? P2 Demonstrate use of scientific techniques to separate substances. P3 Estimate the purity of samples using scientific techniques. M2 Describe the factors that influence purity D2 Evaluate the accuracy of the methods used to estimate the purity of the samples Keywords - Mixture, precipitation; crystallisation; filtration; drying; distillation; solvent extraction; chromatography; electrophoresis; centrifugation.

Write an introduction about the uses of steam distillation Draw the apparatus Write a method – with an explanation of each step Write a risk assessment How is the mixture of essential oil and water separated? P2 Demonstrate use of scientific techniques to separate substances. P3 Estimate the purity of samples using scientific techniques. M2 Describe the factors that influence purity D2 Evaluate the accuracy of the methods used to estimate the purity of the samples