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Separation Techniques

Total questions: 20

Worksheet time: 9mins

Name
Class
Date
1.

A _______ is a mixture of two or more different substances.

a)

Element

b)

Mixture

c)

Compound

d)

Pure substance

2.

______ allows insoluble solids to settle to the bottom of the container before the liquid is carefully poured off the top.

a)

Filtration

b)

Precipitation

c)

Decantation

d)

Handpicking

3.

________ separates the insoluble solids from a liquid in a mixture using a filter.

a)

Decantation

b)

Sifting

c)

Magnet attraction

d)

Filtration

4.

________ separates the solid substances that have noticeable differences in sizes, shapes or colors.

a)

Sifting

b)

Handpicking

c)

Precipitation

d)

Decantation

5.

_________ separates solids of different sizes.

a)

Handpicking

b)

Evaporation

c)

Sifting

d)

Decantation

6.

What separation technique should we use to separate sand from dirty water?

a)

Magnet attraction

b)

Handpicking

c)

Filtration

d)

Centrifugation

7.

How to separate a mixture of different nuts and beans?

a)

Sifting

b)

Handpicking

c)

Decantation

d)

Evaporation

8.

Mina poured out the water from a bowl with a mixture of water and rice grains. What technique did she use?

a)

Handpicking

b)

Filtration

c)

Decantation

d)

Precipitation

9.

Pooh separated the pebbles from the mixture of sand and pebbles using a sieve. What technique did he use?

a)

Sifting

b)

Sieving

c)

Both sieving and sifting are correct

d)

None of the choices

10.

Ploy is planning to separate the mixture of flour and iron filings. What must she use?

a)

Wood

b)

Magnet

c)

Metal

d)

Water

11.

Which of the following mixture will be used for the evaporation separation technique?

a)

Beans and cereals

b)

Flour and pepper corns

c)

Iron filings and sand

d)

Water and salt

12.

What must Athens use to separate the mixture of flour and peppercorns?

a)

Filter paper

b)

Sieve

c)

Water

d)

Funnel

13.

Sifting is a technique used to separate solids of different sizes?

Answer: Yes or No

(a)  

14.

Handpicking can be used to separate a mixture of oil and water.

Answer: Yes or No

(a)  

15.

What are the mixtures needed if we use a decantation technique?

a)

Sand and flour

b)

Tea and tea leaves

c)

Sand and shells

d)

Mixture of fruit salad

16.

What are the mixtures needed if we use the precipitation technique?

a)

Metal paper clips and magnet

b)

Mixtures of different gases

c)

Dirty water with alum

d)

Flour and water with filter paper

17.

What mixtures we must use if we use the magnet attraction separation technique?

a)

Iron filings and flour

b)

Magnet and metal paper clips

c)

Magnet and pins

d)

All of the above

18.

Can we use decantation if we want to separate a mixture of flour and red beans?

Answer: Yes or No

(a)  

19.

Can we use handpicking to separate tomatoes from the salad?

Answer: Yes or No

(a)  

20.

Can we consider air as a mixture?

Answer: Yes or No

(a)