1.
The Phases of Matter
MATTER

2.
Phases of Matter
Water is one of the basic needs of living things.
About 75 percent of our planet is covered by water; which comes in different
forms as solid (ice in the polar ice caps and glaciers) as liquid (water on the
surface or underground), or as gas (water vapor in the atmosphere).
The water on the surface of Earth is constantly changing among these three
phases.

3.
Ice can change to water or water vapor.
Water can change to ice or water vapor.
Water vapor can change to ice or water.
This is an endless process that connects all of these phases of
water.

4.
Phases Changes
Phase Change- is a type of reversible physical change that
makes the phase of matter change due to absorption or the
release of heat.
When a substance changes its phase, its form, volume, and
particle motion may change as well.

5.
6 Phase changes that matter can
undergo:
1. Melting
2. Freezing
3. Vaporization
4. Condensation
5. Sublimation
6. Deposition

6.
6 Phase changes that matter can
undergo:
1. Melting- is a process by which substance in the solid phase turns into
the liquid phase.
2. Freezing or Solidification- a substance in liquid phase may turn into
solid by freezing it.
Solid
Melting
Freezing
Liquid

7.
6 Phase changes that matter can
undergo:
3. Vaporization- is the process by which a liquid turns into gas. When a
substance reaches its boiling point, it starts to change into gaseous
phase.
4. Condensation- is a process by which a gas turns into a liquid. This
happens when water vapor comes in contact with a cool surface. It loses
heat and changes back into liquid water.
Liquid
Vaporization
Condensation
Gas

8.
6 Phase changes that matter can
undergo:
5. Sublimation- is a process by which a solid turns directly into gas.
When sublimation occurs, the substance does not go through a liquid
phase.
6. Deposition- occurs when a gas turns directly into a solid. Similar to
sublimation, this process also skips the liquid phase.
Solid Gas
Sublimation
Deposition

9.
END!

10.
QUESTIONS?

11.
Asynchronous Task
“Water Cycle Diorama”
The DOST held a program on the usefulness of hydrologic energy and on how water behaves in
different states of matter within the water cycle. In order to realize this program, as a scientist
you were tasked to present the water cycle through a 3D diorama explaining how water
behaves and label the three important steps: evaporation, condensation and precipitation
and needs to be an arrow showing the direction of the water cycle.

12.
Sample of DIORAMA

13.
ACTIVITY
PHASES OF MATTER