This document defines key weather-related terms and concepts: - It describes weather as the condition of the atmosphere in a certain area at a given time. It also discusses meteorology, meteorologists, and the Philippine Atmospheric Geophysical Astronomical Services Administration. - Key weather elements that are described include air temperature, wind speed and direction, cloud formation, and rainfall. Instruments for measuring these such as thermometers, anemometers, wind vanes, rain gauges, and barometers are also outlined. - The Beaufort scale for describing wind speed is mentioned, as are terms for describing cloud coverage such as clear, partly cloudy, and overcast.

2. What is the weather today?What is the weather today?
Look and
describe the
weather
outside.

4. Weather
It is the
condition of
the
atmosphere
in a certain
area at a
given time.

5. METEOROLOGY
- A study of weather
METEOROLOGISTS
- Expert in meteorology
PAGASA
-Philippine
Atmospheric
Geophysical
Astronomical
Services
Administration

6. Atmosphere
•An envelope of air

8. Weather SpaceWeather Space

9. Weather ElementsWeather Elements
•Air Temperature
•Wind Speed and
direction
•Cloud Formation
•Rainfall

10. Air TemperatureAir Temperature
• How tempearture
affects the
weather?
• When the day is
sunny, air
temperature is high.
• When it is rainy, air
temperature is low.

11. Wind VelocityWind Velocity
•It describes
wind speed
and wind
direction.

12. Wind SpeedWind Speed
• It is measured by an
instrument called
anemometer.
• Wind speed may be
very fast or strong,
fast, slight, and mild.
• A fast wind may be
felt on a rainy day.
• slight and mild wind
may be experienced
on a sunny day.

13. Wind DirectionWind Direction
• It tell where the wind is coming from.
• It is determined by a wind vane.

14. Wind VaneWind Vane
• The arrowhead
will point to
where the wind
is coming from.
• A wind coming
from the north is
called north
wind.

15. Wind SocksWind Socks Aero VaneAero Vane

16. Beaufort Scale of Wind VelocityBeaufort Scale of Wind Velocity
• A helpful tool in describing wind.

17. Cloud FormationCloud Formation
CLOUDS
- are tiny droplets of
water
EVAPORATION
-Water changes to
water vapor
CONDENSATION
-Water vapor to water
TERMS TO DESCRIBE
CLOUDS
• CLEAR
• PARTLY CLOUDY
• CLOUDY or
OVERCAST

19. Amount of RainfallAmount of Rainfall
• The amount of
rainfall is
measured with a
RAIN GAUGE
and may be
expressed in
centimeters.

20. Air PressureAir Pressure
• It can be
measured
through a
BAROMETER

21. How much do you know?How much do you know?
• It is used to measure the air pressure.
• It is used to measure amount of rainfall.
• It is used to described the clouds.
• It is used to know the wind direction.
• It is used to know the speed of the wind.
• It is used to measure the air temperature.
• It is known as the weather space.
• It is an envelope of air.
• It is person who is expert in weather
• It is the condition of the atmosphere in a
given time and place.

22. HomeworkHomework
List two answers for each item.
• What do you plan to do during:
A. Sunny days?
B. Rainy days?
C. Stormy days?
D. Fair weather?