sept 17, 2014 what is a typhoon

According to Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA), about 20 tropical cyclones

enter the Philippine Area of Responsibility (PAR) each

year.

Tropical depression, tropical storm and

typhoon are the categories of earthquake.

Typhoon is used only in the northwest part of

the Pacific Ocean, while in northeast part and Atlantic Ocean, it

is called hurricane.

Group Activity:What is a typhoon?

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.

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?

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.

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.

Categories ofTropical cyclones

Tropical Depression - An organized system of

clouds and thunderstorms.

- maximum sustained winds of 39 mph (mile per hour) of less.

- Tropical Storm- - An organized

system of strong thunderstorms

- maximum sustained winds of 39-73 mph.

• Typhoon• - An intense tropical

weather system with a well-defined circulation

• maximum sustained winds of 74 mph or higher.

Concept Map

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.

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.

• 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

Reference

• Science 8 Textbook (deped)