Separating mixtures using a magnet.
Requirements.
Iron fillings
Sand
A magnet
A bowl.
Procedure
Put the iron fillings in a bowl.
Add some sand into the bowl.
Mix the two substances. Describe the mixture.
Pick the magnet and hold it slightly above the mixture.
Observe what happens. Record your observations
Questions from the experiment.
What do you notice on the surface of the magnet?
Why did the magnet pick the iron filings and not the sand?
What kind of mixture is a magnet used to separate?
Observation and Explanation
A magnet is used to separate materials attracted to it from those not attracted to it.
Materials that are attracted to a magnet are called magnetic materials.
In the experiment above, a magnet attracts iron filings because iron filings are magnetic.
A magnet does not attract sand as it is nonmagnetic.
Therefore, the magnet will attract iron filings and separate them from the sand.
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