Question
Which property could allow a student to easily separate sand and iron filings?(1 point)
Responses
melting point
melting point
boiling point
boiling point
solubility
solubility
magnetism
magnetism
Separating Mixtures Quick Check
3 of 43 of 4 Items
Question
You are worried that a solid substance has dissolved in a beaker of water in a lab. What would be a way to separate the substance from the water?(1 point)
Responses
Pass the solution through a filter to let the dissolved substance separate.
Pass the solution through a filter to let the dissolved substance separate.
Boil the water away, leaving the substance behind in the beaker.
Boil the water away, leaving the substance behind in the beaker.
Pour the liquid along a rough surface that would catch the solid particles but not the water.
Pour the liquid along a rough surface that would catch the solid particles but not the water.
Use a magnet to draw out the solid substance from the water.
Pass the solution through a filter to let the dissolved substance separate.
A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to separate out the sand and salt?(1 point)
Responses
distillation to collect the sand and filtration to collect the salt
distillation to collect the sand and filtration to collect the salt
distillation to collect both the sand and the salt
distillation to collect both the sand and the salt
filtration to collect the sand and distillation to collect the salt
filtration to collect the sand and distillation to collect the salt
filtration to collect both the sand and the salt
filtration to collect the sand and distillation to collect the salt
The property that could allow a student to easily separate sand and iron filings is magnetism.
The property that could allow a student to easily separate sand and iron filings is magnetism. To understand why, we need to know the properties of sand and iron filings.
Sand is primarily composed of small grains of rock or mineral particles. It is generally not magnetic, which means it does not have any attraction to a magnet.
On the other hand, iron filings are small pieces of iron that have been cut or grounded into tiny particles. Iron is a magnetic material, which means it can be attracted to a magnet.
So, if a student wants to separate sand and iron filings, they can use a magnet. By bringing a magnet close to the mixture of sand and iron filings, the iron filings will be attracted to the magnet and stick to it, while the sand will not be affected. This allows the student to easily remove the iron filings from the mixture using the magnet, leaving the sand behind.