A mixture contains materials that can keep their own properties. A magnet can collect iron from nonmagnetic sand. A sieve can sort pieces by size. A paper filter can retain undissolved sand while water passes. Dissolved salt passes through ordinary paper with the water. Choose a property that actually differs between the components.
Matter and chemistry · Discover & try
How can a mixture be separated without a reaction?
Reading level 1 of 5 · EarlyChange
Word help
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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