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Ways to Separate Mixtures

Ways to Separate Mixtures. Which Method?. There are several ways to separate mixtures. The physical properties of the mixture will determine which s e paration method is the best one to use. Sifting. Sifting involves using a sieve or a sifter as a way to separate solids of varying sizes .

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Ways to Separate Mixtures

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  1. Ways to Separate Mixtures

  2. Which Method? • There are several ways to separate mixtures. • The physical properties of the mixture will determine which separation method is the best one to use.

  3. Sifting • Sifting involves using a sieve or a sifter as a way to separate solids of varying sizes. • Examples include: rocks, gravel, and sand. • Think of another example of a mixture that can be separated by sifting.

  4. Magnetic Attraction • Magnets are used to separate magnetic materials such as iron, steel, nickel or cobalt from non-magnetic materials in a mixture. • Examples include: separating iron filings from sand. • Think of another example of a mixture that can be separated by using a magnet.

  5. Filtration • Filtration removes solids from liquids by using a filter. • Example: a mixture of sand and water • Think of another example of a mixture that can be separated by using a filter.

  6. Evaporation • Evaporation involves heating a solution until the liquids turn to gases and leave the solids behind. • Example: boiling a solution of water and salt until all that is left are the salt crystals.

  7. Which Method? • You have been given a mixture of sand, salt, and water. Which method or methods will you use to separate this mixture? Why? + +

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