Separating Mixtures

What mixture could you use this tool to best separate that mixture?

• Sugar and Salt

• Sand and rocks

• Apples and grapes

Sand and clay are an example of a mixture of solids.

• True

• False

If you had a mixture of rocks and sand and needed to separate them what method would work best?

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A bucket contains a mixture of wood blocks and rubber erasers. The easiest way to separate the wood blocks from the rubber erasers would be to –

• place the bucket onto a heat source

• run a magnet through the bucket

• pour the mixture through a filter

• add water to the bucket

A teacher gives a group of students a mixture of sugar and sand. The sugar grains are the same size as the grains of sand. What is the easiest way for the students to separate the sand from the sugar?

• Use tweezers to remove every grain of sand

• Put the mixture in water and filter the sand out of the water

• Pour the mixture through a wire screen to remove the sand

• Run a strong magnet through the mixture to attract the salt

A cup is filled with a mixture of water and gravel. Which method listed below could NOT be used to separate this mixture?

• Allow the water to evaporate

• Pour the mixture through a paper filter

• Pour the mixture through a wire strainer

• Run a magnet through the mixture

A group of students uses a magnet to separate some mixtures. Which of these mixtures is most likely to be separated by a magnet?

• Pennies and rubber bands

• Wood blocks and wax candles

• Safety pins and glass marbles

• Plastic toys and rubber erasers

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The best way to separate trail mix would be:

• filter

• by hand

• sieve

• evaporation

This type of paper allows liquid to pass through it. What tool is it?

• sieve

• filter

What tool is this?

• sieve

• filter