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Mixture and Separation Techniques

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

This method is a technique used in separating a less-dense substance from a denser one.

a)

decantation

b)

evaporation

c)

distillation

d)

filtration

2.

This involves using a strainer or a big screen to separate the components of solid mixtures.

a)

chromatography

b)

distillation

c)

sieving

d)

physical manipulation

3.

What method of separating mixtures is shown in the picture?

a)

filtration

b)

distillation

c)

physical manipulation

d)

use of magnet

4.

This method is used to separate metals from non metals.

a)

use of magnet

b)

physical manipulation

c)

sieving

d)

chromatography

5.

This method is used in separating soluble solid from a liquid such as salt from water.

a)

evaporation

b)

distillation

c)

decantation

d)

filtration

6.

This method is utilized in industries like junkyards to remove metal scraps from other materials.

a)

chromatography

b)

physical manipulation

c)

use of magnet

d)

distillation

7.
Two or more substances mingled together, but not chemically combined are known as a
a)
residue
b)
solution
c)
distillate
d)
mixture
8.
Sand and gravel may be separated from each other through using..
a)
a filter funnel
b)
a sieve
c)
an evaporating basin
d)
a distillation
9.
Which one of the following techniques would best be used to separate soil and water?
a)
Decanting
b)
distillation
c)
Filtration
d)
Chromatography
10.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
11.
Sodium chloride can be separated from rock salt by first adding water to the mixture to dissolve the sodium chloride. The separation then takes place in two stages:
a)
evaporation followed by filtration
b)
 distillation followed by decanting
c)
filtration followed by evaporation
d)
filtration followed by decanting
12.
To separate iron filings and sulfur what method should you use?
a)
filtration 
b)
sorting
c)
magnet
d)
boiling
13.
How would you separate the ingredients of mixture Z?
a)
Water
b)
A magnet
c)
A sieve
d)
My hands
14.
How would you separate a mixture of sand and salt? 
a)
Mix them with water and let the water evaporate
b)
Mix them with water, pour the mixture through a sieve, then let the water evaporate
c)
Heat the sand and salt mixture for 5 minutes, then let it cool
d)
I would not do any of these because none of these options would work
15.
Which one of the following is NOT a mixture?
a)
Sugar
b)
Paint
c)
Crude oil
d)
Air