According to the document: - About 20 tropical cyclones enter the Philippine Area of Responsibility each year according to PAGASA. - Tropical cyclones are categorized as tropical depressions, tropical storms, or typhoons based on their sustained wind speeds. - The term "typhoon" is used for tropical cyclones that develop in the northwest Pacific Ocean, while similar storms in other regions are called hurricanes.

3. According to Philippine
Atmospheric, Geophysical,
and Astronomical Services
Administration (PAGASA),
about 20 tropical cyclones
enter the Philippine Area of
Responsibility (PAR) each
year.

5. Tropical depression,
tropical storm and
typhoon are the
categories of
earthquake.

7. Typhoon is used only
in the northwest part of
the Pacific Ocean,
while in northeast part
and Atlantic Ocean, it
is called hurricane.

9. Group Activity:
What is a typhoon?

10. Procedure:
1. Form a group composed of 5-6 students.
2. Assign a leader, a group secretary, a timer and a presenter.
3. distribute the questionNAIRE to each group.
4. read the article about tropical cyclone.
5. present the output after 30 minutes.

11. Questions:
1. What is a tropical depression?
2. What is the maximum sustained
wind of a tropical depression?
3. Give one distinct feature of a
tropical depression.
4. What is a tropical storm?
5. What is the maximum sustained
wind of a tropical storm?

12. Questions:
6. Give one distinct feature of
a tropical storm.
7. What is a typhoon?
8. What is the maximum
sustained wind of a typhoon?
9. Give one distinct feature of
a typhoon.

13. Tropical cyclone
- is a system of thunderstorms
that are moving around a
center.
-occur all around the world.
-hurricanes in the Atlantic
and Caribbean, typhoons in
the West Pacific, bagyo in the
Philippines, cordonazos in
Mexico, and tainos in Haiti.

14. Categories of
Tropical cyclones

15. Tropical Depression
- An organized system of
clouds and
thunderstorms.
- maximum sustained
winds of 39 mph (mile
per hour) of less.

16. - Tropical Storm
- - An organized
system of strong
thunderstorms
- maximum sustained
winds of 39-73 mph.

17. • Typhoon
• - An intense tropical
weather system with
a well-defined
circulation
• maximum sustained
winds of 74 mph or
higher.

18. Concept Map

19. Quiz
• True or False
• 1. According to PAGASA, about 20
tropical cyclones enter the Philippine
Area of Responsibility each year.
• 2. Tropical depression, tropical storm,
and typhoon are the categories of
tropical cycle.

20. Quiz
• True or False
• 3. Tropical cyclone is a system of
thunderstorms that are moving around a
center.
• 4. Typhoon is the Earth’s strongest
tropical cyclone.
• 5. If there is a typhoon, people should
avoid riding in any seacraft – boats and
ships.

21. • 1. What is the maximum wind
speed in kilometer per hour
(kph) of tropical depression,
tropical storm and typhoon?
• 2. What is PAR?
• Page 139

22. Reference
• Science 8 Textbook (deped)