Transcript 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
separation 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.
• Examples include: rocks, gravel, and
sand.
• Think of another example of a
mixture that can be separated by
sifting.
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.
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.
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.
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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