Free Printable Mixtures CAT Revision

1.

What two processes are involved in obtaining pure water from a sugar solution?

a)

Evaporation and decanting

b)

Crystallisation and evaporation

c)

Evaporation and condensation

d)

Condensation and crystallisation

2.

What is the name of the process used by cooks to separate large grains from small flour particles?

a)

Filtration

b)

Sedimentation

c)

Sieving

d)

Gravity separation

3.

Which mixture could be separated using magnetic attraction?

a)

Nails and paperclips

b)

Iron filings and sulphur

c)

Iron filings and paperclips

d)

Sand and sulphur

4.

A solid which dissolves in another substance is called a:

a)

Solvent

b)

Solution

c)

Solute

d)

Sediment

5.

Which one of the following is incorrect? An insoluble substance may:

a)

Form a Solution

b)

Form a Suspension

c)

Form a Sediment

d)

Float on top of a liquid

6.

Stuart is vacuuming the carpeted areas of his house. The filtrate (the substance that passes through the filter) is the

a)

Carpet

b)

Air

c)

Vacuum Cleaner

d)

Dust

7.

Which of the following is a correct statement about how a filter works?

a)

Only gases can pass through a filter.

b)

Solids may be forced through filter paper, leaving a liquid in the folded paper cone.

c)

Particles which are too big are trapped by the filter.

d)

A filter will separate all dissolved solids from the liquid.

8.

Decanting is:

a)

Pouring liquid from a beaker or flask down the sink.

b)

Pouring the entire contents of one beaker into another more conveniently sized beaker.

c)

Just another name for centrifuging.

d)

Tipping the liquid in one beaker into another, leaving some solid in the bottom of the first beaker.

9.

The main component of sewage is:

a)

Water

b)

Body Waste

c)

Food

d)

Detergent

10.

Inks can be separated into their coloured components by:

a)

Filtration

b)

Chromatography

c)

Crystallisation

d)

Distillation

11.

Which of the following is added to our water to kill micro-organisms?

a)

Chlorine

b)

Lime

c)

Fluoride

d)

Carbon dioxide

12.

Clumps of small particles that sink to the bottom of a sample of water during the purification process are called:

a)

Atoms

b)

Alum

c)

Floc

d)

Molecules

13.

Why is water considered to be an important solvent?

a)

Water occurs in large quantities on Earth.

b)

Water dissolves the chemicals needed by both plant and animal cells.

c)

Water is useful for cleaning clothes and washing kitchen utensils.

d)

Water is a colourless liquid

14.

What is the best way to obtain sugar from a sugar solution?

a)

Condensation

b)

Evaporation

c)

Sieving

d)

Filtration

15.

Which of the methods shown in the drawings could be used to separate sand from sea water?

Give the correct letter

a)

b)

c)

d)

16.

Which method of separation relies on different boiling points?

a)

Filtration

b)

Centrifuging

c)

Distillation

d)

Decanting

17.

Katie has a cold. Her dad makes her a hot lemon drink using some yellow powder. He mixes the powder with some pure hot water. The powder dissolves in the hot water. Use the following words to answer the question: COLOURLESS INSOLUBLE SOLUBLE SOLUTION SOLVENT YELLOW

Which two words describe the WATER?

a)

Yellow and Soluble

b)

Colourless and Solution

c)

Colourless and Solvent

d)

Yellow and insoluble

18.

Katie has a cold. Her dad makes her a hot lemon drink using some yellow powder. He mixes the powder with some pure hot water. The powder dissolves in the hot water. Use the following words to answer the question: COLOURLESS INSOLUBLE SOLUBLE SOLUTION SOLVENT YELLOW

Which two words describe the powder?

a)

Yellow and Soluble

b)

Colourless and Solution

c)

Colourless and Solvent

d)

Yellow and insoluble

19.

Katie has a cold. Her dad makes her a hot lemon drink using some yellow powder. He mixes the powder with some pure hot water. The powder dissolves in the hot water. Use the following words to answer the question: COLOURLESS INSOLUBLE SOLUBLE SOLUTION SOLVENT YELLOW

Which two words describe the hot lemon drink?

a)

Yellow and Soluble

b)

Colourless and Solution

c)

Colourless and Solvent

d)

Yellow and Solution

20.

Look at the diagram of distillation. What is the name of part X?

a)

Liebig Condensor

b)

Funnel

c)

Beaker

d)

Thermometer

Mixtures CAT Revision

Total questions: 20

Worksheet time: 15mins

Similar Resources on Wayground