Download to the lesson about Weather Elements

“WEATHER and FACTORS
affecting it”
To be presented by:
ChicheRON =)
Presented to:
Grade 5-Neptune
ICE
BREAKER!
ABCDEFGHIJKLM
NOPQRST VWXYZ
Missing U!
A
L
O
N
E
Alone standing/Standing alone
C
H
A
TISME
I
N
G
Chasing through time
HEA
RT
Heart break/Broken heart
READ
Read between the lines
I’m
YOU
I’m far from you
JOinsideB
Inside Job
HEAD
____________
HEELS
Head over heels
GNIVOM
Moving backward
TIME TIME
Time after time
CRAZY
_______
U
Crazy over u
What is WEATHER?
 Weather tells what is going on in the
atmosphere at a particular place and
time.
 Weather refers to the condition of the
atmosphere at a particular place and a
short period of time.
 Weather varies or changes all the time.
 Meteorology is the study of weather.
What’s the difference between
WEATHER and CLIMATE?
 Climate , on the other hand, tells about
the weather in a particular place over a
LONG period of time.
 Climate refers to the average weather
condition in a particular wide area or
place in a long period of time.
 PAGASA stands for – Philippine
Atmospheric Geophysical Astronomical
Services Administration.
Weather Chart
SEASON
 A season is a subdivision of the year,
marked by changes in weather,
ecology, and hours of daylight.
Seasons result from the yearly
revolution of the Earth around the Sun
and the tilt of the Earth's axis relative
to the plane of revolution.
 The Four major Seasons are Winter,
Spring, Summer and Fall.
 Tropical Seasons: Dry and Wet
seasons
SEASONS
Factors affecting WEATHER
 Factors affecting weather are things, conditions or
phenomena’s in which influence the atmospheric
condition of a certain place in a particular time.
 Such factors are as follows:
 Air Temperature
 Air Pressure
 Air Movement/Wind
 Humidity
 Air Masses and Fronts
 Precipitation
 Cloud Formation.
Air Temperature
 Air temperature greatly affects weather. The
amount of heat absorbed by the air causes it to
move.
 Temperature is the amount of heat energy
present in an object.
 The part of the atmosphere nearest to the earth
picks up great heat from earth which absorbs some
of the heat given off by the sun. As air close to
the earth is heated, warm air goes up
because it is lighter then the heavier, cooler
air moves down.
 Thermometer is a device which we use in
measuring Temperature.
Air Pressure
 Air also exerts pressure.
 Pressure is the force applied over a given area.
 Because air has weight, it presses on all objects it
touches. Air pressure is controlled by air
temperature, the amount of water
vapor(Humidity) and the altitude (the height of
the place)
 Warm air is lighter than cold air and therefore has
less pressure than cold air. An increase in
pressure can b caused by a decrease in
temperature.
 Air pressure can be measured by a device called a
Barometer. The unit for pressure is called as
atmosphere or atm.
Barometer
the very first barometer was invented by an Italian scientist
named Evangelista Torricelli in 1644
OOOOOOOOOPS!
A duck or a rabbit? Hmmm?
Air Movement
 Wind is known as moving air.
 When the air moves vertically either updraft of
downdrafts, they are called as convection
currents. Thus air rises in circular patterns.
 The sun’s energy rays hit different parts of the
earth at different angles. Because of this, all
parts of the earth is heated unequally or not
equal.
 The difference between the temperatures of
certain places allows air to move creating
what we call as wind.
 Air moves from a hot place going to a cold
place. Best examples are what we call as sea
breeze and land breeze.
 An anemometer is a device use in
measuring wind speed.
 A wind vane is a device use in telling the
direction of wind.
Humidity
 Humidity refers to the amount of water
vapor present in air.
 More water vapor in air means there is a
high humidity. The air is said to be
saturated.
 Humidity is greatly affected by
temperature. The higher the temperature
more water will evaporate and turn into
water vapor thus saturating air.
 Dew point is the temperature at which
water vapor condenses forming dews or
clouds.
 Hygrometer is a device used in measuring
the humidity of air.
Hygrometer and Psychrometer
Air masses and fronts
 An air mass is very large amount of air
that has the same temperature and
humidity. It can cover thousand of
kilometers of the earth’s surface, and it
can be many kilometers high. Once
formed, the air mass begins to move
through the atmosphere.
 As air masses move, sometimes a cold air
mass meets a warm air mass. The
boundary or surface where the two air
masses meet is called a front. If a cold air
mass flows under the warm air mass a
cold front is formed. A cold front brings
heavy rains and thunderstorms.
Precipitation
 Precipitation is the process by which
condensed water vapor falls from the
clouds to the ground.
 A rain gauge is used to measure the
amount of rainfall falling in a certain
place.
Types of precipitation
Rain
Snow
Sleet
Hail
OOOOOOOOOPS!
How many black dots do you see?
Cloud Formation
 Clouds are formed from the condensation of water vapor that
went up into the upper troposphere. A temperature
range from 0 to negative temperatures allows cloud
formation.
 Clouds are good determiners of weather
 A clear sky without clouds means a sunny weather.
 Presence of cirrus and stratus clouds also signify a
good weather condition.
 Cumulus clouds indicates that it would be a cloudy
weather.
 Nimbus clouds also known as Rain clouds. Usually
dark in color because its filled with water vapor ready
to precipitate down to the ground.
Cumulus cloud
Stratus
clouds
Cirrus
clouds
Nimbus
clouds
THANK YOU FOR LISTENING!
NOW ARE YOU FOR A SHORT
QUIZ!?
=D
It is the condition of the
atmosphere in a particular place
in a short period of time.
Answer: WEATHER
It is the science that studies
about weather.
Answer: Meteorology
Is the average atmospheric
condition is a certain place in a
long period of time.
Answer: CLIMATE
PAGASA stands for?
Philippine Atmospheric
Geophysical Astronomical
Services Administration
The amount of heat energy
present in air/atmosphere.
Answer: AIR TEMPERATURE
The force exerted by air in a
given area.
Answer: AIR PRESSURE
Is a device used in measuring air
pressure.
Answer: BAROMETER
It is known as moving air.
Answer: Wind
A device used in measuring wind
speed.
Answer: Anemometer
_______ is a very large amount
of air that has the same
temperature and humidity.
Answer: Air mass
Refers to as the amount of water
vapor present in the atmosphere.
Answer: Humidity
Is the process by which
condensed water vapor falls from
clouds.
Answer: Precipitation
These are formed from the
condensation of water vapor in
the troposphere.
Answer: Clouds
Enumerate the four major
seasons on earth.
Answer: Winter, Spring,
Summer and Fall or Autumn
What’s your
score!!?
Hehehe
Thank you for listening and
participating
Hope you learn today!
ChicheRon =P