ESSENTIAL
QUESTION:
Which state of matter (solid,
liquid, gas, or plasma) do you
believe is most important for
survival? Explain your thinking.
S
THE STATES OF MATTER
S What is matter?
S What are the states of matter?
S How can you tell the different states of
matter apart?
S Can the matter change into different
states?
DOES MATTER REALLY
MATTER?
BY LINDSAY PURNELL
S
Topics of
Discussion:
• What is matter?
• The three states of
matter: Solids, liquids,
and gases
• Changing matter from
one state to another
• Matter in the real world
WHAT IS
MATTER?
• Matter is EVERYTHING
around you!
• Matter is anything
that has mass and
takes up space.
• Matter is anything
made of atoms and
molecules.
The Three States of
Matter
SOLID
LIQUID
GAS
SOLIDS
• Retain their shape
• Particles are tightly
packed, usually in a
regular pattern
• Particles will vibrate
but cannot move past
each other
LIQUIDS
• Assume the shape of
their containers
• Particles are close
together but do not
form a pattern
• Particles flow and
can easily move past
each other
GASES
• Assume the shape of
their containers
• Particles are well-
separated with no
regular pattern
• Particles vibrate and
move freely at high
speeds
CLASSIFYING THE STATES
OF MATTER:
What have you learned?
Get ready to test your knowledge on the different
states of matter! Is it a solid, a liquid, or a gas? It’s up
to you to figure it out!
http://www.sciencekids.co.nz/gamesactivities/ga
ses.html
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CHANGES IN MATTER
Temperature and pressure can make matter change
states. How does this happen???
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RAISING THE TEMPERATURE
S When heat is applied
to matter, its state
usually changes from
solid  liquid  gas.
S There are some
exceptions in which
the solid will go
straight to a gas.
LOWERING THE TEMPERATURE
S When matter is
cooled, its state
usually changes from
gas  liquid  solid.
S There are some
exceptions in which
the gas will go
straight to a solid.
NAMES OF CHANGES
Heating
Cooling
S Solid  Liquid =
S Liquid  Solid =
S Liquid  Gas =
S Gas  Liquid =
S Solid  Gas =
S Gas  Solid =
MELTING
BOILING
SUBLIMATION
FREEZING
CONDENSATION
DEPOSITION
How it “matters” in the real
world…
Watch how these artists from Columbus,
Ohio use the states of matter in their
every day lives…
STATES OF MATTER VIDEO
Lesson Summary:
• What is matter?
• What are the three states of matter?
• How are these states different?
• How does matter change from one state to
another? Give examples.
• How is matter important to us?
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