States of Matter &
Phase Changes
Solid, Liquid, & Gas
Heat
Adding Heat
Subtracting Heat

Gaining thermal
energy

Losing thermal
energy

Particles move faster
& temperature rises

Particles move
slower &
temperature drops
Solid ( + Heat )

Melting- from solid to
liquid

Melting Pointtemperature when
something melts

Water’s Melting Point
(0oC)

Sublimation- solid
directly to gas

Ex- Dry Ice
Liquid ( + Heat )

Vaporization- liquid becomes
gas

Evaporation- takes place at
surface & below boiling pt.

Boiling- vaporization that
occurs below the surface

Water’s Boiling Pt (100oC)

Boiling Point- temp when
something changes from
liquid to gas
Liquid ( - Heat)

Freezing- liquid to
solid

Freezing Point- temp
when liquid changes
to solid
Gas ( - Heat)

Condensation- gas
changes into a liquid

Ex- Beads of water
that form on a glass

Deposition- gas
directly to solid

Ex- Frost
Plasma- (Copy Down on
Front of Foldable)
Definition

4th state of matter

Made up of charged
(positively & negatively)
particles

Ex: Neon lights,
lightning, stars
Brain Pop Video
http://glencoe.mcgrawhill.com/sites/0078778085/student_view0/brainpop
_movies.html#
Solid, Liquid, or Gas

1.) Which state of matter does
this picture represent?
Solid, Liquid, or Gas

2.) Which state of matter does
this picture represent?
Solid, Liquid, or Gas

3.) Which state of matter does
this picture represent?
Identify the state of matter that
matches each statement.

4.) Has a definite shape &
volume

5.) Completely fills the container

6.) Has a definite volume but no
definite shape because it takes
on the shape of the container

7.) Particles have a lot of energy
& move very fast; there is space
between the particles

8.) Particles have enough
energy to slide past each other
but are still touching

9.) Particles have very little
energy & vibrate in fixed
positions
Heat
+ Heat
- Heat

Gaining thermal
energy

Losing thermal
energy

Particles move faster
& temperature rises

Particles move
slower &
temperature drops
Types of Solids
Crystalline Solidparticles arranged in a
repeating, 3-D pattern
called a crystal

EXAMPLES- SALT,
SUGAR & SAND
Amorphous Solidparticles arranged
randomly

EXAMPLES- RUBBER,
GLASS, & PLASTIC
Viscosity of Liquids
Viscosity- a liquid’s
resistance to flow

More viscosity- slower
flow

Less viscosity- faster
flow
Surface Tension- uneven
forces acting on the
particles on the surface,
causing surface to act
like a film