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Weather and Weather Elements

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.

Science◦
What is the weather today?What is the weather today? Look and describe the weather outside.
Weather It is the condition of the atmosphere in a certain area at a given time.
METEOROLOGY - A study of weather METEOROLOGISTS - Expert in meteorology PAGASA -Philippine Atmospheric Geophysical Astronomical Services Administration
Atmosphere •An envelope of air
Weather SpaceWeather Space
Weather ElementsWeather Elements •Air Temperature •Wind Speed and direction •Cloud Formation •Rainfall
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.
Wind VelocityWind Velocity •It describes wind speed and wind direction.
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.
Wind DirectionWind Direction • It tell where the wind is coming from. • It is determined by a wind vane.
Wind VaneWind Vane • The arrowhead will point to where the wind is coming from. • A wind coming from the north is called north wind.
Wind SocksWind Socks Aero VaneAero Vane
Beaufort Scale of Wind VelocityBeaufort Scale of Wind Velocity • A helpful tool in describing wind.
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
Amount of RainfallAmount of Rainfall • The amount of rainfall is measured with a RAIN GAUGE and may be expressed in centimeters.
Air PressureAir Pressure • It can be measured through a BAROMETER
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.
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?