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CHANGES OF STATE

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
Taking energy away from a substance will make its particles move
a)
more slowly
b)
more quickly
c)
at the same speed
2.
When a gas forms directly from a solid, skipping the liquid phase. it is called
a)
deposition
b)
sublimation
c)
evaporation
d)
condensation
3.
The change from a gas to a liquid is called 
a)
condensation
b)
evaporation
c)
sublimation
d)
deposition
4.

The change in state from liquid to gas is called

a)

vaporization

b)

sublimation

c)

condensation

d)

deposition

5.
In which state of matter are particles moving the slowest?
a)
solid
b)
liquid
c)
gas
d)
gummy bears
6.
The state that matter exists in depends on its 
a)
volume 
b)
weight
c)
temperature 
d)
mass
7.
What is the melting point of water?
a)
212°C
b)
100°C
c)
32°C
d)
0°C
8.
How do you make matter change state?
a)
Add energy to it
b)
Take energy away from it
c)
Both of these
9.

Both boiling and evaporation are forms of vaporization. What is the difference between them?

a)

Boiling liquids have intense heat added to it, evaporating liquids take heat from their environment.

b)

Boiling happens quickly, evaporation happens slowly.

c)

Evaporation occurs only at a liquid's surface, boiling occurs throughout the liquid

d)

All of these reasons

10.
Adding more heat energy to particles of matter will
a)
make them move slower
b)
make them move faster
c)
make them stop moving
d)
destroy them
11.
What is it called when the state of matter changes from a liquid to a solid?
a)
Vaporization
b)
Freezing
c)
Condensation
d)
Melting
12.
Melting (changing from a solid to a liquid) is a chemical change. (True or False)
a)
False
b)
True
13.

What is the boiling point of water?

a)

212°C

b)

100°C

c)

32°C

d)

0°C

14.

A substance's melting point is the same as its

a)

freezing point.

b)

condensation point.

c)

boiling point.

15.

If you have a sample of water that is 144 °C, what state is it in?

a)

solid

b)

liquid

c)

gas

16.
As the energy of the molecules in a substance increases, the temperature of the substance __________.
a)
increases
b)
decreases
17.

If you have a sample of water that is 44 °C, what state is it in?

a)

solid

b)

liquid

c)

gas

18.

Sublimation (changing from a solid directly to a gas) is a chemical change. (True or False)

a)

False

b)

True

19.

On a hot, humid summer day drops of water form on a can of cold soda. What process caused this to happen?

a)

condensation

b)

freezing

c)

vaporization

d)

deposition

20.

It rained yesterday, but today there are no puddles left on the ground. What process caused this to happen?

a)

condensation

b)

vaporization

c)

sublimation

d)

deposition