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UNIT 7 GRADE 6 SCIENCE

Total questions: 17

Worksheet time: 17mins

Name
Class
Date
1.

Liquids that dissolve in water are called:

a)

IMMISCIBLE

b)

MISCIBLE

c)

INSOLUBLE

d)

SOLVENT

2.

Some liquid solutions like iodine use --------------- as a solvent.

a)

WATER

b)

ETHANOL

c)

TURPENTINE

d)

PETROLEUM

3.

Which one of the following is said to be homogeneous?

a)

SOLUTION

b)

SUSPENSION

c)

MIXTURE

d)

COMPOUND

4.

Cement powder mixed with water forms a thick suspension called:

a)

LUMPS

b)

SLURRY

c)

GRANULES

d)

NONE OF THESE

5.

How much of the Earth's surface is covered by a strong salt solution?

a)

ONE THIRD

b)

TWO- THIRDS

c)

ONE- FOURTH

d)

ONE- HALF

6.

A weak solution, containing little solute is called a :

a)

SATURATED SOLUTION

b)

CONCENTRATED SOLUTION

c)

DILUTE SOLUTION

7.

Which sea is a concentrated solution of salt?

a)

DEAD SEA

b)

ARABIAN SEA

c)

RED SEA

d)

ALL OF THEM

8.

An alloy is a solid solution of two or more:

a)

METALS

b)

NON METALS

c)

CHEMICALS

d)

SOLVENT

9.

In which water, it is difficult to produce lather?

a)

HARD WATER

b)

HEAVY WATER

c)

SALTY WATER

d)

NONE OF THESE

10.

Which of the following chemical is used as an antifreeze?

a)

ETHENE

b)

ETHYNE

c)

ETHYLENE GLYCOL

d)

GLYCEROL

11.

A suspension can be separated into its components by:

a)

DISTILLATION

b)

FILTRATION

c)

EVAPORATION

d)

DECANTATION

12.

--------------- is an alloy of copper and zinc.

a)

BRASS

b)

TIN

c)

BRONZE

d)

SOLDER

13.

Bronze is an alloy of copper and:

a)

TIN

b)

ZINC

c)

LEAD

d)

POTASSIUM

14.

In air freshener , liquid is dissolved in air. Which one of these is a solute? LIQUID OR AIR?

a)

LIQUID

b)

AIR

c)

BOTH

15.

------------------- dissolve better in cold water than in hot water.

a)

LIQUIDS

b)

GASES

c)

SOLIDS

16.

A solution that allows light to pass through it is said to be :

a)

HOMOGENEOUS

b)

HETROGENEOUS

c)

SUSPENSION

17.

NAME OF STUDENT

4 lines