This document appears to be notes from a science class lesson on heat transfer and temperature. The lesson defines key terms like heat, temperature, and thermal energy. It discusses temperature scales like Celsius, Fahrenheit and Kelvin and how to convert between them. Thermometers are introduced as a way to accurately measure temperature. The concept of heat transfer between objects at different temperatures is explained. Different units used to measure heat are defined, including joules, calories, and British Thermal Units, along with conversion factors between them. The lesson concludes by asking students to summarize how temperature affects heat and how it is measured.

1. WELCOME
TO SCIENCE
CLASS
MR. PAULO ANGELES

3. Our Father, Who art in heaven,
Hallowed be Thy Name.
Thy Kingdom come.
Thy Will be done,
on earth as it is in Heaven.
Give us this day our daily bread.
And forgive us our trespasses,
as we forgive those who trespass against us.
And lead us not into temptation,
but deliver us from evil. Amen.

5. PRE-
ACTIVITY
HOT or COLD

6. wE WILL FORM pairs WHICH
you WILL SOAK your HANDS
ON WARM AND COLD WATER
THEN HOLD EACH OTHERS
HAND
INSTRUCTIONS

7. 1. WHAT HAVE YOU OBSERVED
WHEN YOU HELD YOUR HANDS ON
DIFFERENT TEMPERATURES?
2. EXPLAIN WHY HAVE YOU
FELT THAT WAY
3. HOW DO YOU MEASURE
THE DEGREE OF HOTNESS
AND COLDNESS?

8. What do you
think is our
topic for
today?

10. AT THE END OF THE LESSON, YOU SHOULD BE ABLE TO:
differentiate heat, thermal energy and
temperature
compare thermometric scales; and
convert temperature units

11. What is
heat?
It is an energy transferral
that is transferred from
one system to another as
the result of a difference in
temperature.

12. What is
Temperature?

13. It is a quantity that
measures how hot or
cold an object is.
(°F-Fahrenheit,°C-
Celcius, and K-Kelvin)
Temperature

14. Temperature
Once there is contact between
two objects of different
temperatures , the energy in
transit is called “heat”. The
direction of transfer is always
from warm to cool objects
which neturalizes temperature.

15. The temperature can be
accurately measured
through the use of
thermometer which an
instrument in determining
temperature.
Temperature Scales

16. Celsius thermometer measures
unit.
This is calibrated by assigning:
0°C- Freezing Point
100°C- Boiling Point
Temperature Scales

17. In America,
32°F- Freeze
212°F-Boiling

18. In Kelvin Scale-
0 is assigned to the
absolute zero
temperature. The
kelvin unit is same
division like Celsius
but doesn’t have
negative forms

19. Conversion of
Temperature Units
Measuring/Conversion

22. hEAT AND
INTERNAL
ENERGY

23. OBJECTS DO NOT
CONTAIN HEAT.
INSTEAD, THEY HAVE
THERMAL ENERGY OR
INTERNAL ENERGY,
WHICH IS THE SUM
TOTAL OF ALL
ENERGIES THAT A
SUBSTANCE CONTAINS.

24. remember THAT HEAT ALWAYS FLOWS
FROM A HIGHER-TEMPERATURE
SUBSTANCE TO LOW-TEMPERATURE

26. hEAT IS MEASURED IN THE
THREE COMPONENTS
A unit of
energy which
heat is
measured (J)
cal-Calorie
Btu-British
thermal unit
Amount of heat
required in changing
temperature of one
gram of water by 1°C
Amount of heat
required in changing
temperature of one
pound of water by 1°F
J-joules

27. Calorie is a unit of energy. In nutrition,
we see food labels with nutrition facts
which shows number of calories is
present in food or drink. The number
of calories corresponds to the amount
of energy that we get from consuming
a certain serving of food
What is Calorie?

28. THE FOLLOWING SUMMARIZES THE
DIFFERENT UNITS OF HEAT AND THE
CONVERSION FACTORS
1 calorie (cal) = 4.184 joules (J)
1 kilocalorie(kcal) = calories = 4.186 x 10³ J
1 Btu (British thermal unit) = 0.252 kcal = 1, 055 J

29. Generalization
HOW DOES THE
TEMPERATURE AFFECT
HEAT AND HOW IT IS
MEASURED?

30. 1. What is the boiling point temperature in Celsius, Fahrenheit
and Kelvin?
C-
F-
K-
QUESTION/QUIZ
Answer the following and obtain/get the formula of the following
given items:

31. Assignment
• Take a video of how the boiling
or cooking works (transfer of
heat) focus on the flaming and
boiling or frying stage of dish
cooked
Seek assistance to parents in
doing/recording this assignment
2. What have you notice what
happened to the water, or
substance (liquid, vegetables,
meats, soups and etc.)
Explain what have noticed......