DESCRIBING THE EFFECTS OF THE WIND GIVEN A CERTAIN STORM WARNING SIGNAL

LESSON IN SCIENCE 5

1. SCIENCE V DESCRIBING THE EFFECTS OF THE WINDS, GIVEN A CERTAIN STORM WARNING SIGNAL ELVIE V. MACAPAGAL TEACHER

2. What are the different weather disturbances?  

3. (The teacher will show some pictures.) What can you see in the pictures? When do these things usually happen?  

4. Describing the effects of the wind, given a certain storm warning signal.

5. PAGASA (Philippine Atmospheric Geophysical and Astronomical Services Administration) is responsible in giving weather updates especially the PSWS (Public Storm Warning Signal)

6. The PSWS is used to gauge the strength of a typhoon as it enters the Philippine Area of Responsibility (PAR). It is based on the strength of the wind of a typhoon over an area, its circulation and projected direction.

7. A Public Storm Warning Signal No. 1 is characterized by winds moving at 30-60 kph. Intermittent rains are also expected in at least 36 hours.

8. A Public Storm Warning Signal No. 2 is characterized by winds moving greater than 60 kph up to 120 kph expected in at leastb24 hours.

9. Public Storm Warning Signal # 3 is characterized by winds moving greater to 121 kph up to 170 kph expected in at least 18 hours.

10. Public Storm Warning Signal # 4 is characterized by a very strong typhoon with a very strong winds of 171 kph to 220 kph and may be expected in at least 12 hours.

11. Group Work Group 1- Describe the effects of the wind in Public Storm Warning Signal # 1 Group 2- Describe the effects of the wind in Public Storm Warning Signal # 2 Group 3- Describe the effects of the wind in Public Storm Warning Signal # 3 Group 4- Describe the effects of the wind in Public Storm Warning Signal # 4  

12. Presentation of Outputs   Groups 1 to 5 will present their work with the guidance of the teacher.

13. Public Storm Warning Signal # 1 1. The winds may cause the twigs and branches of small trees to be broken. It can also tilt or uproot some bananas. 2.Houses made of light materials maybe partially unroofed 3. Rice crops and vegetables may also be damaged.

14. Public Storm Warning Signal # 2 1. The winds may cause coconut trees to break or tilt even to uproot big trees. 2. More crops including rice, corn and banana could be damaged. 3. More houses made of light materials or old galvanized iron may be unroofed.

15. Public Storm Warning Signal # 3 1. The winds may cause many coconut trees and almost all banana plants to be destroyed. Rice and corn crops maybe heavily affected. 2. Majority of light material structures maybe unroofed or destroyed. 3. There could be destruction of electrical power or communication services.

16. Public Storm Warning Signal # 4 1 . Agricultural sector may suffer great loss. Coconut, rice and corn plantations could be severely damaged. 2. There could be high destruction of residential or instructional buildings. 3. Severe disruption of electrical and communication services.

17. GENERALIZATION:   The effect of the wind depends on a certain public storm warning signal. The higher the typhoon warning signal is, the greater the speed of the wind and the damage it may cause to the environment.  

18. List the effects of the wind during the different public storm warning signals. Effects of the wind Signal # 1 Signal # 2 Signal # 3 Signal # 4 1 sea           2 houses           3 plants           4 electricity           5 rice fields          

19. Write True if the statement is true and False if not. __________ 1. Public storm warning signal # 4 can uproot big trees. __________ 2. In Signal # 3, the sea is very calm. __________ 3. The leaves of the trees are strongly moving in signal # 2. __________ 4. There is a possible storm surge with signal # 4. __________ 5. Signal # 4 can destroy houses and buildings. __________ 6. Signal # 2 can break small twigs and can uproot banana plants __________ 7. Buildings and houses can be destroyed in signal # 5. __________ 8. There is a severe movement of waves in the sea during signal # 4. __________ 9. Nipa huts or houses made of light materials can be damaged or destroyed by signal # 2. __________ 10. Power supply is cut during typhoon signal # 3, 4 and 5.  

20. Make an advance reading about the phases of the moon.