Interactive Powerpoint_How to Master effective communication
COT-Presentation-FINAL.pptx
1. Classroom norms
• Arrange the chairs accordingly.
• Do not answer in chorus. Raise hands
when you want to answer or ask a question.
• Ask permission when going out of the
classroom.
• Observe silence during discussion.
Participate in class activities.
• Minimize voice when in group tasks to
avoid disturbance.
• Listen when there are presentations.
2. Health Protocols!
• Always wear face mask.
• Sanitize your hands from time to time.
• Observe physical distancing.
• Refrain from touching with each other.
4. Objectives
• 1. Define and describe the changes
that happen in materials due to
application of heat.
• 2. Discuss the changes that materials
undergo when heat is applied; and,
• 3. Understand that matter undergoes
changes due to application of heat.
5. Group activity
Leader One who leads the group
Secretary One who writes the answers of the group
Reporter One who reports the output to the class
Timekeeper One who monitors the time
Members Will cooperate and participate in constructing ideas
• Using the same groupings, the students will gather by
group in a designated area.
• Each group will be given an activity sheet.
• The activity will be performed within 5 minutes only.
• Each group will assign the following roles to the
members.
6. Group activity
“Which is Which?”
Problem:What are the materials that undergo
chemical change and physical change?
Materials: Manila paper, scotch tape, and
Pictures (materials undergo chemical and physical
change)
7. Group activity - Rubrics
Criteria 3 2 1
Promptness The group who
finished the activity
on or before the
given time.
The group who
finished the activity
3 minutes after the
given time.
The group who
finished the
activity more than
5 minutes the
given time.
Cooperation All the members
actively
participated in
performing the
activity.
1 member did not
actively participate.
More than 1
member did not
actively
participate.
Accuracy All the answers are
correct.
One answer is not
correct.
More than one
answers are not
correct.
8. Activity Proper
Guide Questions:
1. Based How did you find the activity?
2. What materials undergo chemical
change?
3. What materials undergo Physical
change?
9. discussion
Heat is a form of energy. It is described
as how high the temperature is. It is
measured using a thermometer.
Changes in matter when heat is
applied
• PHYSICAL CHANGE
• CHEMICAL CHANGE
10. discussion
When heat is applied to materials that
undergo physical change, they change in
shape, texture, phase and temperature. On
the other hand, when heat is applied to
materials that undergo chemical change, the
color, odor and temperature are also changed.
11. discussion
Heat can bring about physical changes in matter. Some
solid materials melt when enough heat is applied to
them just like the melting ice when it is placed out of
the refrigerator. The ice absorbs heat from the
surroundings, which will then melt after a few minutes.
In placing the ice outside, its solid phase and shape
becomes liquid but no new material is formed. It is
physical change.
12. discussion
On the other hand, if water is subjected to heat, it
evaporates. Just like when your mother hangs your wet
laundry under the sun. After several hours, the clothes
became dry. Meaning, the water in your clothes evaporated.
13. discussion
Heat does not only produce physical change in a material.
Sometimes, heating a material causes it to undergo chemical
change which is irreversible. One common example of this is
cooked food. The egg that your mother cooked for breakfast
has undergone chemical change by cooking. You cannot bring
back the egg into its liquid form before it was cooked.
Another example is burnt wood that changes into black.
Smoke, heat and ashes are produced. These are new
substances formed during combustion.
14. Assignment
• Look around in your house, list down the materials
that are good conductors of heat. Make a collage
or poster of these materials.
