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Dissolving Grade 2

Total questions: 35

Worksheet time: 20mins

Name
Class
Date
1.

The example of solid is ...

a)

shampoo

b)

syrup

c)

sugar

2.

The example of liquid is ...

a)

syrup

b)

salt

c)

sugar

3.

The state of matter of the object is ...

a)

solid

b)

liquid

c)

gas

4.

The process that happened in the picture is ...

a)

melting

b)

freezing

c)

dissolving

5.

The object that can dissolve in water is ...

a)
b)
c)
6.

.... is a matter that has fixed shape.

a)

solid

b)

liquid

c)

gas

7.

Milk powder and sugar can dissolve in water, so they are called as .... material.

a)

solvent

b)

soluble

c)

insoluble

8.

I am a liquid.

People can drink me.

My color is white.

I come from cow.

I am ....

a)

coconut milk

b)

water

c)

milk

9.

How can you test if a substance is soluble?

a)

Put it in the sun

b)

Put it in water

c)

Put it in the freezer

d)

Heat it up

10.

If the substance floats on top of the water, that means the substance is....

a)

light weight

b)

soluble

c)

insoluble

d)

salt

11.

Which of these substances are soluble? (there could be more than one answer)

a)

salt

b)

sugar

c)

sand

d)

marbles

12.

Helen pours some tiny stones into a glass of water. The stones makes the water cloudy before they all settle down at the bottom of the glass. Which statement is true?

a)

The stones are soluble and have dissolved in the water.

b)

The stones are insoluble and have not dissolved in the water.

c)

The stones are soluble but need to be stirred to dissolve.

d)

The stones are insoluble but soluble if added to the water slowly.

13.

Which substance is in the wrong column of the chart?

a)

sugaar

b)

honey

c)

grass

d)

salt

14.

The sand in this water is . . . .

a)

soluble

b)

insoluble

15.

The oil in this water is . . .

a)

soluble

b)

insoluble

16.

What happens when a substance dissolves in water?

a)

The substance floats to the top

b)

The substance breaks down and becomes part of the water

c)

The substance sinks to the bottom

17.

Some substances ........................... when you mix them with water.

a)

squash

b)

dissolve

c)

heat

18.

The mix of solute and solvent

a)

soluble

b)

insoluble

c)

solution

19.

The flour is …………………………., it means it cannot dissolve.

a)

insoluble

b)

solution

c)

soluble

20.

The followings are solvent

a)

Sand

b)

Water

c)

Tea

d)

Sugar

21.

All materials dissolves

a)

True

b)

False

22.

Dissolved substances cannot be seen, they become part of the water.

a)

True

b)

False

23.

Solution is the result of mixing two substances together .

a)

True

b)

False

24.

Look at the diagram. A is?

a)

Solute

b)

Solvent

c)

Solution

25.

Temperature has an effect on the speed a solid dissolves in water.

a)

True

b)

False

26.

Hot water makes a solid ___________________.

a)

dissolve faster

b)

dissolve slower

c)

not dissolve

27.

Cold water makes a solid ___________________.

a)

dissolve faster

b)

dissolve slower

c)

not dissolve

28.

What happened to the solid in this photograph?

a)

it evaporated

b)

it melted

c)

it turned into condensation

d)

it dissolved

29.

Dissolving means...

a)

to sink to the bottom

b)

to float to the top

c)

to break into tiny pieces you can't see

d)

to evaporate

30.
To separate sand and iron filings you would use a  ___________.
a)
a screen strainer
b)
coffee filter paper
c)
a magnet
d)
your hands
31.
Which of the following is an example of a solution?
a)
Water and Sand
b)
Water and Pepper
c)
Water and Sugar
d)
Water and Oil
32.
Sugar is added to water and stirred until it completely dissolves. Which of the following correctly describes something that has happened to the sugar?
a)
the mass of the sugar increased
b)
the mass of the sugar decreased
c)
the sugar disappeared and no longer exists
d)
the sugar is evenly distributed in the water
33.

Oil dissolves in water

a)

True

b)

False

34.

Gold and Silver dissolve in water

a)

True

b)

False

35.

Mrs. Werblo and Mrs. Eck were competing to see who could dissolve a sugar cube in water faster. Mrs. Werblo decided to shake her water and sugar cube together. Which thing could Mrs. Eck could do his sugar cube to speed up the dissolving process?

a)

decrease the temperature of the water

b)

increase the temperature of the water

c)

Nothing at all. Mrs. Werblo will automatically win the competition.