# What is Matter?

```Created by Mrs. Dismukes
THE THREE STATES OF
MATTER
Vocabulary Words
Matter
Mass
Solid
Liquid
Gas
What is Matter?
MATTER IS THE STUFF
AROUND YOU
Not very clear, but it's true.
Anything that takes up space or
has a mass of any kind is matter.
Everything you can touch is made
of matter.
Mass is the amount of matter that
something contains. A large
heavy object such as an
elephant has a lot of mass.
A small, light object such as a
maple leaf
less mass.
has much
A solid is matter that has a definite
shape and takes up a definite
amount of space. The particles in
a solid are close together, like neat
and even stacks of tiny balls. Each
particle moves back and forth
around one point. This
arrangement of particles gives a
solid its definite shape.
A liquid is matter that takes
the shape of its container and takes
up a definite amount of space.
When matter is a liquid, its
particles slip and slide around each
other. The particles don’t keep the
same neighbors…they move from
place to place. But they still stay
close to each other.
Gas
A gas is matter that has no definite
shape and takes up no definite
amount of space. Like particles in
liquids, the particles in gases are
not arranged in any pattern.
Unlike particles in liquids, however,
particles in gases do not stay close
together. This is because particles
in gases are moving much faster
than particles in liquids. A gas
always fills the container it is in.
How can a liquid be
changed to a solid?
By taking away heat
Summary
Matter takes up space. Matter is
solid matter stay close together
and move back and forth
around one point. Particles
in liquid matter stay close together
but move past each other.
Particles in a gas are spread
far apart.
How can mass be
measured and
compared?
Vocabulary Words
Density
Volume
DENSITY
Which was more dense? The cup of
raisins or the cup of cereal? Why?
The Raisins
The property of matter
that compares the amount
of matter to the space
taken up is called
density.
Volume
Matter has mass
and takes up
space. The
amount of space
that matter takes
up is called its
volume.
How is mass measured?
Mass is measured with a pan balance.
Measuring Volume
Regular Solid
V=LxWxH
Irregular Solid
Measure ml of water
Submerge object
Measure ml of water again
Subtract to find the volume
100ml=100ccm
Measuring Density
Density = mass volume
• A red ball has a mass of 100 grams and a volume
of 200 cubic centimeters. A blue ball has a mass
of 5 grams and a volume of 10 cubic centimeters.
Which ball has the greatest density?
100200=0.5 g/ccm RED BALL
510=0.5 g/ccm BLUE BALL
They have the SAME density.
Summary
All matter has mass and volume. Mass is
the amount of matter in an object. The
space that matter takes up in is called
volume. Density compares the amount of
matter in an object to the amount of
space it takes up. You can find the
density of an object by dividing its mass
by its volume.
Vocabulary
Solution
Dissolve
Solubility
Buoyancy
Solution
• A solution is a mixture
in which the particles
of different kinds of
matter are mixed
evenly with each
other.
Dissolve
Which
One
Will
Dissolve
?
When one material
forms a solution with
another material, we
say it DISSOLVES.
forms a solution; the
marble in water does
not.
What is solubility?
The measure of the amount of a material
that will dissolve in another material.
SOLU---BILITY
The ability of one substance to dissolve in another.
BUOYANCY
BUOYANCY:
The ability of matter to
float in a liquid or gas.
Solutions are mixtures in which
the particles are mixed evenly.
Some matter dissolves in water
and some does not. Matter that
is less dense than water floats on
water. Buoyancy can be
controlled by changing density.
What are chemical and
physical changes?
What are chemical and
physical changes?
Physical changes: A change in the
shape size, or state of the substance.
Chemical changes: A change that
produces one or more new substances
and may release energy.
Chemical reaction: another term for
chemical change.
Chemical Changes
Physical Changes
Powdered Sugar
Table Sugar
Sugar Cubes
Rock Candy
SUMMARY
Physical changes are changes to the size or
shape of a substance such as cutting or
folding; and changes of state such as
melting, freezing, and boiling. During
physical changes, no new substances are
formed. Chemical changes, or chemical
reactions, form new substances. Changes in
color or releases of energy show chemical
changes have taken place. Burning and
rusting are examples of chemical changes.
THE END
Resources
WWW.BJBARTON.COM
http://www.chem4kids.com/files/matter_states.html
http://www.nyu.edu/pages/mathmol/textbook/whatis
matter.html
 Harcourt Science Book, 4th grade, 2002.
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