Science 7 - 4th Quarter

2. •WHY THE WIND BLOWS?
•WHY MONSOONS OCCUR?
•WHAT IS INTERTROPICAL
CONVERGENCE ZONE?

3. ALL OF THESE ARE DRIVEN BY THE SAME
THING…
•SOLAR ENERGY

4. WHAT HAPPENS
WHEN AIR IS HEATED?

6. WHAT HAPPENS TO
THE SURROUNDING
AIR AS WARM AIR
RISES?

9. IN NATURE…
•DURING THE DAY, THE SURFACE OF THE EARTH BECOMES
WARM BECAUSE OF THE SUN.
•SOME PARTS WILL WARM UP MORE QUICKLY THAN
OTHERS.
•WHAT HAPPENS TO THE WARM AIR?
•HOW IS THE AIR IN THE SURROUNDINGS AFFECTED?

10. REMEMBER:
•AIR MOVES TOWARD THE PLACE
WHERE WARM AIR IS RISING.

11. •WHENEVER WE FEEL THE AIR
MOVING, THAT MEANS THAT
SOMEWHERE, WARM AIR IS
RISING.

12. WHICH WARMS UP FASTER?
VS

13. SEA BREEZE

15. LAND BREEZE

16. 1

17. WHY MONSOONS
OCCUR?

18. MONSOONS
•DO YOU KNOW WHAT MONSOONS
ARE?

19. EXPLAIN THE FOLLOWING…
•WHY DO FARMERS WELCOME THE
MONSOONS?
•WHY ARE FISHER FOLKS NOT SO HAPPY
ABOUT THE MONSOONS?

20. EXPLAIN THE FOLLOWING…
•WHY DO ENERGY PROVIDERS APPRECIATE THE
MONSOONS?
•WHY ARE FISH PEN OWNERS WORRIED ABOUT
THE MONSOONS?
•HOW DO MONSOONS AFFECT YOUR OWN TOWN?

21. MONSOONS ARE…
•WINDS THAT USUALLY BRING
ABUNDANT RAINFALL TO THE COUNTRY.
•IN FILIPINO, THE MONSOONS ARE
CALLED AMIHAN AND HABAGAT.

24. WHAT IS
INTERTROPICAL
CONVERGENCE ZONE?

25. INTERTROPICAL
CONVERGENCE ZONE (ITCZ)
•RECALL THAT WARM AIR RISES AND
AIR MOVES TOWARD THE PLACE
WHERE WARM AIR IS RISING.

28. •AIR FROM THE NORTH AND SOUTH OF
THE EQUATOR WILL MOVE TOWARD THE
PLACE WHERE WARM AIR IS RISING.
•THE ITCZ IS THE PLACE WHERE WINDS
IN THE TROPICS MEET OR CONVERGE.

29. •IN TIME, THE RISING WARM AIR
WILL FORM CLOUDS, WHICH MAY
LEAD TO THUNDERSTORMS.

31. SUMMARY:
•GREENHOUSE EFFECT
•GLOBAL WARMING
•OZONE DEPLETION
•WHY WIND BLOWS
•WHY MONSOONS OCCUR
•WHAT IS ITCZ