Select a method by considering both the mixture and the tool's mechanism. A magnet acts on magnetic components; a size barrier retains components too large to pass its openings. Neither principle guarantees complete purity in a real sample. The model shows expected separation for reviewed combinations and explicitly leaves dissolved solute with the liquid after ordinary filtration.
Matter and chemistry · Discover & try
How can a mixture be separated without a reaction?
Reading level 4 of 5 · FluentChange
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mixture
Materials together without a single fixed chemical composition.
filtration
Separating some components using a barrier that permits others to pass.
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Virtual magnetic and size-based sorting; ordinary filter behaviour is simplified and does not certify safe water.
What to look for
- A tool needs a property difference
- Dissolved material is not suspended sand
- Components are sorted rather than created
Explain what you noticed
Sugar has fully dissolved in water. Will an ordinary paper filter collect the sugar like grains of sand?
Keep this idea: Match a separation mechanism to a useful property difference.
Follow the sources
- University of California San Diego — Separating Mixtures: Teacher Version
- U.S. Environmental Protection Agency — Filtration
Source material checked 2026-10-29. Explanations and activities by Nepedia. Source links do not imply endorsement.
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