P6 Unit 6 Separation Techniques

Mona bought a bag of flour to bake some bread. She noticed some lumps of flour inside the bag. Which separation technique can she use to separate the lumps from the rest of the flour?

• Sifting

• Filtration

• Decanting

• Precipitation

Mona then wanted to use the baking powder but discovered some iron filings inside. How should she separate the iron filings from the baking powder?

• Sift the mixture.

• Heat the mixture.

• Use a magnet to attract the iron filings.

• Pick out the iron filings using her hands.

What is the correct order of steps to get salt from a mixture of sand and salt?

• Add water → evaporate → filter

• Add water → filter → evaporate

• Evaporate → filter → add water

• Filter → add water → evaporate

What is the name of the separation technique above?

• Filtration

• Decanting

• Evaporation

• Precipitation

Which of the following correctly identifies substances A, B and C?

• Mixture, Filtrate, Residue

• Residue, Filtrate, Mixture

• Filtrate, Mixture, Residue

• Mixture, Residue, Filtrate

Which underlined solid cannot be obtained using filtration?

• Salt and water mixture

• Flour and water mixture

• Chalk and water mixture

• Iron filings and water mixture

Sifting separates larger solids from smaller ones using a sieve. Flour is solid so the lumps of flour can be separated from the rest by sifting. Which method is used to separate lumps of flour from the rest?

• Sifting

• Filtration

• Evaporation

• Magnetism

Which method is used to separate iron filings from baking powder?

• Sifting

• Filtration

• Magnetism

• Evaporation

Chalk is insoluble in water. The mixture can be separated by filtration. How can a mixture of chalk and water be separated?

• Sifting

• Filtration

• Evaporation

• Magnetism

How can you separate a mixture of sand and salt?

• Sifting and magnetism

• Filtration and evaporation

• Decanting and filtration

• Magnetism and evaporation