Year 10 - Science
Filtration
Separating substances
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit explores purification techniques, including filtration, crystallisation, and distillation. It explains formulations, uses chromatographic methods to identify pure and impure substances, and interprets chromatograms with Rf values. The emphasis is on accurate measurements.
Lesson Summary
You will learn to describe how to carry out filtration and explain how it works.
Key Notes
- Filtration is a technique used to separate insoluble substances from a mixture with a liquid.
- Separation in filtration occurs due to the difference in size of particles.
- The terms 'filtrate' and 'residue' describe the components separated by the process of filtration.
Vocabulary To Learn
- filtration: Filtration is a technique to separate insoluble solids from a liquid by passing the mixture it is in through a filter.
- filtrate: A filtrate is the liquid component separated from a mixture as a result of filtration.
- residue: The insoluble component collected in the filter paper as a result of filtration is called the residue.
- component: A component refers to a part of something, e.g. a tyre on a car.
Common Mistakes To Avoid
- A funnel is the same as a filter.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Filtration is a technique used to separate insoluble substances from a mixture with a liquid. Separation in filtration occurs due to the difference in size of particles.
2. Define this scientific word and use it in context. 'filtration'
Filtration is a technique to separate insoluble solids from a liquid by passing the mixture it is in through a filter. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: A funnel is the same as a filter. Correction: A funnel streamlines movement, while a filter separates materials. Use everyday examples to highlight the difference, e.g. an oil funnel vs. an oil filter, or a coffee funnel vs. a coffee filter.
More Lessons In This Unit
- Chromatography: paper Study Guide
- Chromatography: separating a mixture of inks Study Guide
- Comparing types of chromatography: including gas chromatography Study Guide
- Crystallisation Study Guide
- Distillation: fractional distillation Study Guide
- Distillation: separating a mixture of inks Study Guide
- Distillation: simple distillation Study Guide
- Interpreting chromatograms Study Guide
- Potable water Study Guide
- Potable water: including sedimentation Study Guide
- Separating mixtures Study Guide
- Separating mixtures (including formulations) Study Guide
- Solutions Study Guide
- Wastewater treatment Study Guide
- Water sample analysis: dissolved solids Study Guide
- Water sample analysis: distillation Study Guide
- Water sample analysis: pH Study Guide
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