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Particle theory |
How particle theory explains properties of solids, liquids and gases. |
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Physical & Chemical Changes |
Difference between two types - change of chemicals & ease of reversal. |
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Solvents & Solutions |
Revise meanings of solution, solvent, solute, soluble, insoluble & dissolve. |
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Elements, Compounds & Mixtures |
Basic definitions of each (revision of Year 7 work) |
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Chromatography |
Basic understanding of how chromatography works and knowledge of uses. |
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Distillation |
Theory of simple and fractional distillation. Function of Liebig condenser. Uses of distillation. |
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Filtration and Evaporation |
Theory & uses. Revision of vocabulary: solution, solute, solvent, soluble, insoluble and dissolve |
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Purity |
Purity recognised by correct and sharp boiling & melting points. Need for purity – e.g. in medicines. |