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WATER AND SOLUTION F2

Total questions: 57

Worksheet time: 57mins

Name
Class
Date
1.
Matter can be classified based on physical properties, including solubility in water. Which of these substances would be classified as soluble?
a)
salt
b)
sand
c)
iron
d)
pepper
2.
Ms. Heaton was baking dog treats when she accidentally poured salt into the water instead of sugar. (Whoops) How can Ms. Heaton separate the salt from the water?
a)
stirring the mixture
b)
Evaporating the mixture
c)
adding more water to the mixture
d)
adding more salt to the mixture
3.
Julio is making a solution using sugar and water. How will the properties of the sugar change when it is mixed with the water? 
a)
It will no longer appear as separate grains
b)
it will have a greater mass than before
c)
it will become magnetic
d)
it will change to a gas
4.
To dissolve in water.
a)
solubility
b)
density
c)
mixture
d)
evaporation
5.
A combination of rocks and water is an example of
a)
A mixture
b)
A solution 
c)
Dissovling
6.
Salt dissolves in water like ----
a)
Pepper dissolves in water
b)
Sugar dissolves in water
c)
Rocks dissolve in water
d)
Seeds dissolve in water
7.
A mixture of aluminum and steel can best be separated by ________________.
a)
adding water
b)
using a sieve
c)
density
d)
a magnet
8.
Students are conducting an experiment with salt water.  A large quantity of sand is added to the container of salt water.  What do you expect to observe?
a)
The salt floats to the top of the container.
b)
The sand dissolves.
c)
The sand settles to the bottom of the container.
d)
The salt and sand combine to form a solid.
9.
The boiling point and melting point of water are the same.
a)
False
b)
True
10.
Can you separate salt from water using filtration?
a)
yes
b)
no
11.
Name the separation method that causes wet clothes on a clothes line to dry
a)
Chromatography
b)
Filtration
c)
Distillation
d)
Evaporation
12.
Which of the following substances contain acid?
a)
An orange
b)
Bleach
c)
Distilled water
d)
Washing powder
13.
Which of the following substances contain an alkali?
a)
Baking powder
b)
Coca cola
c)
Distilled water
d)
Vinegar
14.
Which of the following pH numbers indicates a neutral substance?
a)
1
b)
5
c)
7
d)
14
15.
What colour is universal indicator in strong acid?
a)
Green
b)
Orange
c)
Purple
d)
Red
16.
Strong acids and strong alkalis are.......
a)
Able to turn blue litmus paper red
b)
Corrosive and/or caustic
c)
Sour
d)
Sweet
17.
Evaporation occurs when water changes into 
a)
transpiration
b)
snow
c)
solid
d)
vapor
18.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
seiving
c)
evaporation
d)
decanting
19.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
20.
How does a solution become supersaturated?
a)
dissolve lots of solute in it.
b)
dissolve a little solute in it. 
c)
dissolve more solute than you should be able to. 
d)
dissolve a super amount of solvent in it. 
21.
The ___ is the thing being dissolved.
a)
solute
b)
solvent
c)
mixture
d)
suspension
22.
Solubility refers to the ____ of solute that can dissolve in a certain volume or mass of solvent, at a certain temperature.
a)
Volume
b)
Proportion
c)
Mass
d)
Particles
23.

What is the effect of the addition of common salt on the melting point of ice and boiling point of distilled water?

a)

Common salt lowers the melting point of ice

b)

Common salt raises the melting point of ice

c)

Common salt lowers the boiling point of water

d)

Common salt does not cause any change to the melting point of ice

24.

Water is a compound. One molecule of water is made up of ........... oxygen atom and ...........hydrogen atoms.

a)

two, one

b)

one, two

c)

one, one

d)

one, three

25.

The components of water can only be separated through a chemical process known as ........

a)

electrostatic

b)

electrolyte

c)

electrolysis

d)

electrolux

26.

Name the gases that are collected in the measuring cylinders K and L.

a)

K : Oxygen, L : Hydroden

b)

K : Hydrogen, L : Oxygen

c)

K : Oxygen, L : Nitrogen

d)

K : Hydrogen, L : Nitrogen

27.

Gas that is collected at anode lights up a glowing wooden splinter.

a)

Nitrogen

b)

Hydrogen

c)

Oxygen

d)

Carbon dioxide

28.

Give the meaning of solvent

a)

A homogenus mixture from two or more substances

b)

Substance that dissolves in other substances

c)

Solids that do not dissolve in liquids

d)

Substance that dissolves other substances

29.

Give the meaning of solution

a)

A homogenus mixture from two or more substances

b)

Substance that dissolves in other substances

c)

Solids that do not dissolve in liquids

d)

Substance that dissolves other substances

30.

Ensure the following mixture is

a)

solvent

b)

solution

c)

suspension

d)

colloid

31.

Ensure the following mixture is

a)

solvent

b)

solute

c)

suspended particles

d)

suspension

32.

Ensure the following mixture is

a)

solution

b)

suspension

c)

colloid

d)

substance

33.

Ensure the following mixture is

a)

Solute

b)

solvent

c)

solution

d)

colloid

34.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
35.
Type of mixture in which all substances are evenly distributed is a?
a)
Solution
b)
Solute
c)
Solvent
36.
A solution that is considered dilute would be....
a)
Dark in color
b)
Have a strong scent
c)
Have a large amount of solute
d)
Have a small amount of solute
37.
When a solvent contains as much of the solute as it can hold, the solution is said to be
a)
supersaturated
b)
diluted
c)
saturated
d)
unsaturated
38.

It is a maximum amount of solute that is soluble in 100 cm³ of solvent at a specific temperature.

This statement refers to

a)

Solute

b)

Solution

c)

Solubility

d)

Solvent

39.

Diagram shows a glass of milk. It is example of ...

a)

Suspension

b)

Solute

c)

Colloids

40.

Diagram shows experiment to study the effect if stirring and without stirring salts to its rate of solubility in water. Both beaker contain 100 cm³ of water.

What is the manipulated variable?

a)

Rate of solubility

b)

Temperature

c)

Volume if water

d)

Stirring and not stirring process

41.

In which beaker does salt dissolves faster?

a)

Hot water

b)

Room temperature

c)

Ice watet

42.

Why does salt dissolves faster in hot water?

a)

Hot water give high kinetic energy to solvent and solute particles

b)

More collision between solute and solvent particles

c)

Higher temperature gives more surface area to the solute

43.

Why fine salt dissolves faster bin water compared to coarse salt?

a)

Fine salt has bigger total surface area exposed to water

b)

Fine salt has smaller total surface area exposed to water

44.
People must have _______ to drink in order to survive.
a)
frozen water
b)
clean water
c)
contaminated water
d)
polluted water
45.

What is the best way to purify water?

a)

Add salt

b)

Put inside the refrigerator

c)

Filtration or Boiling

d)

Find a very clean stream of water

46.

improved water quality can be achieved by

a)

appropriate use of water

b)

careful water storage and handling

c)

proper land management

d)

all of the above

47.
What does chlorination do to the water?
a)
Removes microorganisms
b)
Cleans the water
c)
Makes the water taste nice
d)
Removes twigs and sediment
48.

The diagram below shows towel hanging on a rail.

Which of the following factor will cause the clothes to dry faster?

a)

Higher humidity of air

b)

Rainy days

c)

Lower temperature of the surrounding

d)

High speed of wind

49.

Which of the following statement regarding the water is NOT TRUE?

a)

Water is a compound.

b)

Electrolysis can determine the composition of element in molecules of water.

c)

Water exists in three states which are solid, liquid and gas

d)

A molecule of water is formed from the combination of two oxygen atom and one hydrogen atom

50.

An example of solute is _________

a)

sand

b)

milk

c)

sugar

51.

___________ dissolves easily in water.

a)

Honey

b)

Soil

c)

Salt

52.

Chalk powder is insoluble in water.

a)

True

b)

False

53.

The liquid in which the solute dissolves is called a __________.

a)

Solute

b)

Solvent

c)

Solution

54.

A Universal solvent

a)

Water

b)

Soil

c)

Petrol

55.

Which of the following affects the formation of a solution?

a)

Stirring

b)

Temperature

c)

Mass

d)

Space

56.

Cold water dissolves solutes more easily.

a)

True

b)

False

57.

Water can be changed to ice on ___________

a)

heating

b)

cooling

c)

adding sugar

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