Show that you know the composition of the air, referring to both constant and variable elements of the air, and what functions each performs.
Tell how the following are formed: moisture, fog, hail, rain, and snow.
Explain the electrical and optical phenomena in the air - such as rainbows, mirages, looming, halos, lighting and thunder. Describe as many of the above as you have seen.
Describe the use and how to read a barometer, thermometer, anemometer, hygrometer, and rain gauge. Make a simple weather vane. Be conversant with storm/weather signals.
Do any one of the following:
Write a simple statement on the climate of the Philippines.
Tell the value of weather prediction. Write a brief account of the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA) - stating what daily, weekly, or monthly publications are prepared and distributed by it. Be able to interpret the chart and graphs contained in these publication.
Keep a daily record for a month of the following: dew or fog in the morning; at a specific hour each day, the direction and force of the wind; the temperature and kinds of clouds (if any) in the sky.
Name some places where, during severe thunderstorms, the danger from lighting is great; some places, where the danger is small.
Show a knowledge of the causes and usual origins and trajectories or paths of typhoons in the Philippines.
