mixtures and separations unit 6

In a mixture of brown sugar and water, the solute is...

• Salt

• brown sugar

• water

• oil

Which one of the mixtures below is a solid/ solid mixture?

• A mixture of steel clips and oil

• A mixture of fine salt and lentils

• a mixture of oil and water

• a mixture of rice grains and water

Which one below is a solid/ liquid mixture?

• A mixture of oil and nuts

• A mixture of stones and marbles

• a mixture of marbles and buttons

• a mixture of sand and marbles

Solids that cannot dissolve in liquids are called....

• Insoluble solids

• soluble solids

• soluble liquids

• insoluble liquids

Solids that can dissolve in liquids are called....

• Insoluble solids

• soluble solids

• soluble liquids

• insoluble liquids

Which solid below is soluble in water?

• Iron thumbtack

• glass marble

• sugar

• raisin

We can use magnet to separate iron powder that is mixed with...

• Nickel keyrings

• Steel clips

• sand

• iron thumbtacks

Sammy took some water from the river. There were small stones and sand in the water. Which object below did Sammy use to separate the small stones and sand from the water?

• Sieve

• cloth

• funnel

• magnet

If the solids in a mixture are smaller than the holes of the sieve, we can use a ..... to separate them.

• Conical flask

• sieve

• beaker

• filter paper

Look at the picture provided. A method of separation shown by the picture is....

• Handpicking

• magnet separation

• sieving

• filtering