CST Review_States of Matter

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States of
Matter
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Matter Changing
States
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How are atoms and molecules arranged in a gas?
Movement of Molecules
solids
e
n
e
r
g
y
e
n
e
r
g
y
liquids
e
n
e
r
g
y
gases
Vibrate
Move
Freely
Move Fast
Hit Things

Arrangement of Molecules
Atoms & molecules are arranged
differently in solids, liquids, & gases.
liquidssolids gases
energy energy
Close
Together
Space
Between
Very Far
Apart

Energy of Molecules
Atoms & molecules in gases have
MORE energy than atoms &
molecules in solids and liquids.
solids
e
n
e
r
g
y
e
n
e
r
g
y
liquids
e
n
e
r
g
y
gases

Think-Write-Group-Share
What four states can
matter exist in?

What four states can
matter exist in?
 solid, liquid, gas, plasma

What states (forms) can matter exist in?
I. Matter can exist in 3 states or
phases: solids, liquids, gases.
solids liquids gases

Solids
 A. do not have a shape
 B. have a shape

How are atoms and molecules arranged in a solid?
II. Solids have their own shapes
and sizes.
Solids have their
own shape and
size.

Liquids
 B. have a shape

What are the properties of liquids?
IV. Liquids do not have their
own shapes.
Liquids do
not have their
own shapes.

Gases
 B. have a shape

What are the properties of gases?
VI. Gases do not have their own
shapes and sizes.
Gases do not
have their
own shapes
and sizes.
Gas

States of Matter Graphic Organizer
Properties Solids Liquids Gases
Shape Has shape No shape No Shape
Volume
(Size)
Size/Volume
stays the same
Volume stays
the same.
Volume expands to
fill the container.

The volume (size) of solids
 A. does not change in
different containers
 B. changes with the
container.

The volume (size) of solids
different containers.
 B. changes in different
containers.

A. The size and volume of a
solid does not change unless
the solid changes.

The volume of liquids
container.

The volume of liquids
 B. changes in different
containers.

A. Liquids do not change their
size or volume.
Liquids do not change their size or volume.

The volume of gases
different containers
container.

A. Gases completely fill their
containers.
Gases completely fill their
containers and take their shapes.
Gas

Solids
 A. take the shape of the
container.
 B. do not take the shape of
the container.

B. Solids do NOT take the
shapes of their containers.
Solids do NOT
take the shapes
of their
containers.

Liquids
container.
the container.

B. Liquids take the shapes of
their containers.
Liquids
take the shapes
of their
containers.

Gases
container.
the container.

B. Gases take the shapes of their
containers.
Gases completely fill their
containers and take their shapes.
Gas

Properties Solids Liquids Gases
What
happens
when
placed in
a
container
Do not take
the shape of
the container.
Take the shape
of the
container.
Take the shape of
the container and fill
the container.

Atoms and molecules in solids
are
 A. close together and touching.
 B. very very far apart.
C. have space between them.

III. Atoms and molecules are
close together in solids.
solids
Atoms or molecules
are close together in
a solid.

Atoms and molecules in liquids
are
 A. close together and touching.
 B. very very far apart.
C. with space between them.

What kind of change is
matter changing between
solid liquid and gas?
 chemical change
 physical change

What are examples of physical changes?
liquidsolid
energy
Changing between solids, liquids and
gases are physical changes.
energy
gas

In a physical change (2 answers)
 A. new substances are created
 B. NO new substances are created.
 C. Substances are made with different
properties.
 D. Made substances do not have different
properties.

In a physical change
 new substances are created
 B. NO new substances are created.
 Substances are made with different
properties.
 D. Made substances do not have different
properties.

liquidsolid
energy
When matter changes between solids,
liquids, and gases nothing new is
created.
energy
gas

Water
liquid
H2O
Ice
solid
H2O
energy
Ice, liquid water and steam are
all water, H2O.
energy
Steam
H2O
gas

When matter changes between
solid, liquid and gas (2 answers)
 A. heat energy must be added
 B. heat energy must be subtracted.
 C. energy is destroyed.
 D. the amount of energy does not change.

When matter changes between
solid, liquid and gas
 A. heat energy must be added
 B. heat energy must be subtracted.
 C. energy is destroyed.
 D. the amount of energy does not change.

How do substances change states (phases)?
Substances change from solids to
liquids to gases when energy is
added or subtracted.
liquidsolid gas
energy energy
heat heat

When matter changes from solid to
liquid to gas
 A. the atoms get closer together.
 B. the atoms get farther apart.
 C. the atoms do not change.

C. Atoms & molecules become farther
apart when energy is added.
liquidssolids gases
energy energy

When matter changes from solid to
liquid to gas
 A. the atoms move faster.
 B. the atoms move slower.
 C. the atoms do not change.

B. Atoms & molecules move faster
when energy is added.
liquidssolids gases
+ energy + energy

Changing from solid to liquid is called
 A. condensation.
 B. freezing.
 C. boiling/evaporation.
 D. melting.
 E. sublimation.

What physical processes cause phase changes?
A. A solid becoming a liquid is
called the process of melting.
liquidsolid
Add energy
Melting

Changing from liquid to solid is called
 B. freezing.
 D. melting.
 E. sublimation.

B. A liquid becoming a solid is
called the process of freezing.
liquid solid
- energy
taken away
Freezing

Changing from liquid to gas is called
 B. freezing.
 C. evaporation/boiling.
 D. melting.
 E. sublimation.

liquid
C. A liquid becoming a gas is
called evaporation and boiling.
Add energy
Evaporation and Boiling
gas

Changing from liquid to gas quickly is
called
 B. boiling.
 C. evaporation.
 D. sublimation

liquid
1. When a liquid becomes a gas
QUICKLY it is called boiling.
Add energy
Boiling
gas

Changing from liquid to gas slowly is
called
 B. boiling.
 C. evaporation.
 D. sublimation

liquid
2. When a liquid becomes a gas
SLOWLY it is called evaporation.
Add energy
Evaporation
gas

Changing from gas to liquid is called
 B. freezing.
 D. melting.
 E. sublimation.

liquid
D. A gas becoming a liquid is
called condensation
- energy
Condensation
gas

Changing from solid to gas is called
 B. freezing.
 D. melting.
 E. sublimation.

2. A solid becoming a gas is called
the process of sublimation.
solid
Add energy
Sublimation
gas

energy
1. Solids like dry ice become gases
when heat energy is added.
Carbon Dioxide GasDry Ice (frozen CO2 )

CST Review_States of Matter

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