Paper filters are used to separate certain mixtures. Which of these mixtures is most likely to be separated by a paper filter?

• Sugar and salt

• Sand and water

• Sugar and water

• Sand and salt

Which method would be the best way to separate a mixture of sand and iron filings?

• 1

• 2

• 3

• 4

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 student is given a beaker containing a mixture of salt and water. The salt is fully dissolved in the water. The student is instructed to separate the salt from the water. What should the student do to separate this mixture?

• Evaporate the water to collect the salt

• Pour the mixture through a paper filter

• Use electrical energy to separate the salt from the water

• Separate the salt and water with tweezers

Tags

NGSS.MS-PS1-2

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

Tags

NGSS.MS-ETS1-2

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

Which mixture would most likely be separated by this strainer?

• Marbles and water

• Salt and water

• Sand and water

• Sugar and water

Tags

NGSS.5-PS1-3

A group of students writes a procedure for separating a mixture of sand and salt. The first two steps of the procedure are shown. Which step should be added to this procedure to finish collecting the salt and the sand?

• Pour the mixture through a wire mesh to collect the salt

• Run a magnet through the mixture to attract the salt

• Boil the solution to remove the water from the salt

• Skim the salt off of the surface of the water