Paper chromatography
Integrated Science · Grade 7 · about 40 minutes
Coloured substances travel at different speeds on paper. Split black ink or leaf pigment. Keep the spot above the solvent.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- What a mixture is
- Homogeneous and heterogeneous mixtures
- Solid-solid and solid-liquid mixtures
- Liquid-liquid and gas-gas mixtures
- Solute, solvent and solution
- Why we separate mixtures
- Evaporation
- Crystallisation
- Simple distillation
- Fractional distillation
- Sublimation
- Solvent extraction
- Paper chromatography
- Matching method to mixture
- Kitchen and home applications
- Farm and cereal applications
- Industry, water and fuel applications
- Sharing tasks and appreciating separation