matter- mixtures and their separation
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Matter- Mixtures and their Separation. Grade 5 Week 3. What are mixtures?. When substances are combined without chemically reacting , mixtures are formed. In a mixture, each component or part retains its own original properties. Solutions are mixtures. Lemonade is a mixture. - PowerPoint PPT PresentationTRANSCRIPT
What are mixtures?
• When substances are combined without chemically reacting, mixtures are formed.
• In a mixture, each component or part retains its own original properties.
Solutions are mixtures.
In a solution, you observe only one single phase (solid or liquid or gas).
Coffee is a solution.
Lemonade is a mixture.
In a mixture, substances do not react chemically, thus
they can be separated more easily by physical
means.
Evaporate water out!
Pure water
salt
Other examples…Since iron is
magnetic, passing a magnet over the
mixture will pull the magnet out!
Filtration can be used to filter particles out of dirty water.
The recent oil spill in the Gulf has been a challenge for scientists. How do we separate the oil from the water in
an effective way?
Here a clean up crew up scoops up oil from the beach….