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CAX KS3 separation techniques

Total questions: 21

Worksheet time: 13mins

Name
Class
Date
1.

Salt water is a solution made up of a _______

a)

liquid dissolved in a solid.

b)

solid dissolved in a liquid.

c)

liquid dissolved in another liquid.

d)

solid dissolved in another solid.

2.

How would you separate a mixture of sand and water?

a)

by sorting by shape

b)

by evaporation

c)

by using a magnet

d)

by filtering

3.

Which of these is the BEST way to separate a mixture of iron nails and plastic paper clips?

a)

straining

b)

filtering

c)

using a magnet

d)

evaporation

4.

Which of these is a mixture?

a)

a salad

b)

salt

c)

bits of iron

d)

sugar

5.

_______________ is the combination of two or more different materials.

a)

solution

b)

mixture

c)

filteration

d)

evaporation

6.

___________ is the mixture in which one or more materials are dissolved.

a)

mixture

b)

solution

c)

filteration

d)

evaporation

7.

_____________ is to separate a solid from a liquid.

a)

Sorting

b)

Filtering

c)

Evaporation

d)

Solution

8.

______________ is the change from a liquid to a gas.

a)

Filtering

b)

Sorting

c)

Evaporation

d)

Solution

9.

How would you separate a mixture of sawdust and iron nails?

a)

Straining

b)

filtering

c)

evaporation

d)

using a magnet

10.

How would you separate a mixture of salt and water?

a)

straining

b)

filtering

c)

evaporation

d)

using a magnet

11.

How would you separate a mixture of sand and pebbles?

a)

sieve

b)

filtering

c)

evaporation

d)

using a magnet

12.

Which separation technique is this instrument for?

a)

Distillation

b)

Filtering

c)

Magnetic separation

d)

Sieving

13.

What separation technique does the picture show?

a)

Sieving

b)

filtering

c)

magnetic separation

d)

Distillation

14.

You've got a mixture of powdered sugar and cooking salt. What is the suitable separation technique for this mixture? Hint: the particles of cooking salt are much bigger than those of powdered sugar.

a)

filtering

b)

sieving

c)

distillation

d)

separation technique

15.

Ethanol and water have different boiling point. What would be the suitable separation technique for a mixture of both substances?

a)

Distillation

b)

Chromatography paper

c)

Sieving

16.

You want to separate the components of a felt tip pen. What is the suitable separation technique?

a)

distillation

b)

chromatography paper

c)

decanting

d)

sieving

17.

How would you separate the substances shown in the picture (oil and water)?

a)

by sieving

b)

by decanting

c)

by distillation

d)

by filtering

18.

The picture shows what you get by performing a separation technique. What's its name?

a)

sieving

b)

paper chromatography

c)

decanting

d)

distillation

19.

Which separation technique is this equipment for?

a)

Sieving

b)

Decanting

c)

Paper chromatography

d)

Magnetic separation

e)

Distillation

20.

Sulphur is not soluble in water. If, accidentally, some sulphur drops into a glass of water. Which separation technique would you use to separate it from the water?

a)

by decanting

b)

by filtering

c)

by crystallization

d)

by sieving

21.

Sawdust is not soluble in water. If, accidentally some particles of sawdust drop into a glass of water. How would you separate them from water?

a)

Decanting

b)

Filtering

c)

Sieving

d)

Distillation