STATES OF MATTER
SCIENCE
2ND GRADE
Heather Dilbeck
October 30, 2011
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WHAT IS MATTER?
Matter is anything that takes up space
 Matter is everywhere
 Examples:



Desk, water, sun
The three states of matter are:
Solids
 Liquids
 Gases

SOLIDS

Three main
properties:
Solids have a
definite shape
 Solids have a
definite mass
 Solids have a
definite volume


Solids will always look
the same
Solids take up the
same amount of space
 Solids have the same
amount of molecules
in them

SOLIDS
In the solid state,
chemical bonds are
stronger than the
kinetic energy of the
atoms. The atoms are
locked into their
positions
 Examples:


Pencil, paper, ball
LIQUIDS

Three main properties
Liquids do not have a definite shape.
 Liquids have a definite mass.
 Liquids have a definite volume.

Liquids will always take up the same amount of
space
 Liquids have the same amount of molecules in it.
 Liquids take the shape of its container.

LIQUIDS


In the liquid state,
atoms or molecules have
sufficient kinetic energy
to overcome the
chemical bonds that
held them in their
crystal lattice and move
independently, yet they
don't have enough
energy to separate
completely from other
atoms.
Examples:

Water, juice, tea
GASES

Three main properties:
Gases do not have a definite shape
 Gases do not have a definite mass
 Gases do not have a definite volume

A gas does not always take up the same amount
of space
 A gas does not always weigh the same amount
 Gases take the shape of their container
 Gases will fill the space they are given

GASES
In the gaseous state,
molecules have so
much kinetic energy
that they fly off in all
directions but
repeatedly collide and
bounce off of other
molecules.
 Examples:

 Sun,
smoke, fog
BILL NYE THE SCIENCE GUY:
PHASES OF MATTER (0:01:30)
POST-TEST
WHICH IS AN EXAMPLE OF A SOLID?

Car

Sun
A CAR IS AN EXAMPLE OF A SOLID
WHICH IS AN EXAMPLE OF A LIQUID?

Water

Ice cube
WATER IS AN EXAMPLE OF A LIQUID
BUBBLES ARE AN EXAMPLE OF A GAS.
BUBBLES ARE AN EXAMPLE OF A GAS.
NORTH CAROLINA STANDARD COURSE OF
STUDY

Competency Goal 3: The learner will observe and conduct
investigations to build an understanding of changes in properties.
 3.01—Identify three states of matter: solid, liquid, gas.
 3.04—Show that solids, liquids and gases can be characterized
by their properties.
CREDITS





American Chemical Society. “Solid, Liquid, and Gas.” 2011. 2011
27 Nov.
<http://www.middleschoolchemistry.com/multimedia/chapter1/les
son5 >.
Banks, Richard. “Chemistry.” Boise State University.
<http://chemistry.boisestate.edu/people/richardbanks/inorganic/ch
emistry/chemistry_c3.htm>. 2011 28 Nov.
Science Classroom, The. “Taylor’s States of Matter.” 2011. 2011
30 Nov.
<https://thescienceclassroom.wikispaces.com/Taylor's+States+of+
Matter>.
Tomecek, Steve. “What is Matter?” Scholastic.
<http://teacher.scholastic.com/dirt/matter/whatmat.htm>. 2011
Oct 23.
Videobb. “Bill.Nye.S01E08-Phases of Matter”
<http://www.videobb.com/watch_video.php?v=5ZD4RWRHSFJd>.
2011 Oct 26.