Download MatterPropertiesandChanges

The Phase Change
Presented by:
Mark A. Villanueva
OPENING PRAYER:
Our Lord God in heaven. Thank you for the new day you've bestowed upon us. Until
this moment, we still have our borrowed life and strength from you. We worship and
praise Your Holy Name.
This moment, we will continue to study and acquire new knowledge. May you bless
your students with witty brain to think fast and an inquiring mind to be curious on
whatever knowledge they will learn today. Most importantly bless them with Your
wisdom and a heart that will follow your commandments in order for them to become
worthy in their studies.
You know that in this recent times, most are suffering from hardships and economic
crises. We humbly ask You to bless the parents of your students. May you shower
Your abundant blessings and prosperity to each of their homes. So that we can use
these not only for our daily lives but especially for the performance of our duties to
your Holy name.
We hope that you heard our prayer.
We ask all of these. In the name of Jesus Christ, our Saviour.
Amen.
RECALL THE
LESSON
It has definite shape and
volume because its
particles are closely
packed together in a fixed
position. These particles
vibrate and are held
together by strong
attractive forces. It is
difficult to compress the
particles.
It has a definite volume and
takes the shape of the
container. Liquid flows easily
because its particles have
enough space and have less
attractive force. The spaces
in the particles allows
particles to be compressed a
little bit.
It takes the volume and shape
of the container. Gas particles
are far from each other that is
why they have the weak
attractive force and can flow
easily. They occupy the entire
space available. The large
spaces in between particles
allows particles to be
compressed easily.
CHANGES IN
MATTER
Matter can go through two different types
of changes.
Types of Changes:
1. Physical
2. Chemical
A physical change in matter is when matter
changes its property but not it’s chemical
nature.
Physical changes:
Although some properties (like shape,
phase, etc.) of the material change, the
material itself is the same before and after
the change.
The change can be “undone.”
Examples: Changes in
1. Shape
2. Texture
3. Size
4. Dissolves
5. Breaks Apart
EXAMPLES:
Aluminum foil is cut in half
Clay is molded into a new shape
Butter melts on warm toast
Water evaporates from the surface of the ocean
Juice freezes
Rubbing alcohol evaporates on your hand
A chemical change in matter is when
matter becomes something completely
new. New matter is formed.
Chemical change:
The substances present at the beginning of
the change are not present at the end;
new substances are formed. The change
cannot be “undone."
CHEMICAL CHANGES
THE MATTER IS DIFFERENT.
THE PARTICALES OF THE
SUBSTANCES ARE BROKEN
APART
THE OLD MATTER IS NO
LONGER PRESNT
ATOMS ARE REARRANGED
INTO NEW PARTICLES
THE ORIGINAL MATTER
A NEW SUBSTANCE IS
CANNOT BE REMOVED FROM FORMED
THE NEW MATTER
EXAMPLES:
Milk goes sour
Jewelry becomes tarnished
Bread becomes toast
Rust forms on a nail
Gasoline is ignited
Hydrogen peroxide bubbles in a cut
A match is lit
Your body digests food
Fruit decomposes and rots
 Matter undergoes phase changes. The
phase change is a change from one
state to another without changing the
chemical composition of a substance.
There are six phase changes that
matter can undergo.
 Melting is the change of matter from solid state to a
liquid state. When liquid state changes back to a
solid state, this phase change is called freezing/
solidification. Evaporation is changing matter from
the liquid state to gas state, while condensation is
the change from the gaseous state to liquid state.
When solid state directly changes to gas without
passing the liquid state, it is called sublimation. In
addition, deposition is the change from a gaseous
state directly to solid state.
Let’s REVIEW !!!!!
 A physical change in matter is when matter
changes its property but not it’s chemical nature.
 A chemical change in matter is when matter
becomes something completely new. New matter is
formed.
 There are Six Phase Changes in the 3 States of Matter:
 Melting, Freezing, Evaporation, Condensation,
Sublimation, Deposition.
LEARNING TASK:
JOURNAL RESPONSE
In six or more sentences describe what
a physical & chemical change is, how
you know a physical and a chemical
change occurs and give two examples of
each six phase changes in the particle
states of matter. (INCLUDE: the Six
Phase Changes and the description)