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Evaporation and filtering are both methods used to separate substances, but they work differently and are used for different types of mixtures:
This involves heating a liquid until it turns into vapor, leaving behind any dissolved solids.
It's typically used to separate a dissolved solid from a liquid. For example, getting salt from saltwater.
Boiling water to leave behind salt crystals.
This involves passing a mixture through a filter (like paper or mesh) to separate solids from liquids or gases.
It's used to separate an insoluble solid from a liquid or gas.
Using a coffee filter to separate coffee grounds from liquid coffee.
In short, evaporation separates based on differences in boiling points, while filtering separates based on particle size.