Ppt elements that affect weather

Elements that affect weatherElements that affect weather- - cloudinesscloudiness

- precipitation - precipitation-Recording weather condition-Recording weather condition

Prepared by: Ms. Shirley Puaso-ValeraGrade 3 St. Fancis/St.AugustineSY 2014-2015

Key Questions Key Questions

A. How do factors affect the A. How do factors affect the weather?weather?

B. Why do we need to know the weather for the day?

ObjectivesObjectivesA. Infer that weather changes from day to A. Infer that weather changes from day to

day.day.B. Identify the elements that affect the

weather.

C. Record in a chart the weather for the day/ week using symbols.

D. Analyze how the different elements can affect the weather condition.

Look outside. Describe Look outside. Describe the weather for the day the weather for the day through the movements through the movements of the clouds.of the clouds.

CloudsClouds -Is a collection of droplets of water floating in -Is a collection of droplets of water floating in

the air.the air.

-Found in the lower part of the atmosphere, Found in the lower part of the atmosphere, tropospheretroposphere

CloudsClouds -Some clouds are formed in the stratosphere ,too

-The shape and the position of the clouds tell the direction and speed of the wind in the sea.

CloudsClouds

- Tells how much water vapor is in the air

What are the kinds of clouds? What are the kinds of clouds?

How clouds help in telling the weather for the day?

Kinds of CloudsKinds of Clouds

• Cirrus cloudsCirrus clouds- are thin , curly , and feathery- are thin , curly , and feathery- they are formed high up in the - they are formed high up in the

sky where air is thin and wind sky where air is thin and wind does not blow too muchdoes not blow too much


• Cirrus cloudsCirrus clouds- the water vapor rises straight up - the water vapor rises straight up

high into the sky to form small lumps of high into the sky to form small lumps of clouds that look like feathersclouds that look like feathers

- they are formed when there is not - they are formed when there is not much moisture in air much moisture in air


• Cumulus cloudsCumulus clouds- are heaped and - are heaped and fluffy like cottonfluffy like cotton- they are formed - they are formed when the wind when the wind

moves straight up in moves straight up in the skythe sky

Kinds of CloudsKinds of Clouds• Cumulus cloudsCumulus clouds

- generally indicate fair - generally indicate fair weather but weather but

when they become too when they become too big and grayish, big and grayish,

they may bring bad they may bring bad weather weather

characterized by characterized by lightning , thunder, lightning , thunder,

and strong rain.and strong rain.


• Stratus cloudsStratus clouds- the indicate light rainy weather- the indicate light rainy weather- can be seen early in the morning or - can be seen early in the morning or

late in afternoonlate in afternoon


• Stratus cloudsStratus clouds- are spread out in the sky- are spread out in the sky- they are formed when the wind moves - they are formed when the wind moves

horizontally, usually cover a large area, horizontally, usually cover a large area,

including the sun for many hoursincluding the sun for many hours

Kinds of CloudsKinds of Clouds• Nimbus clouds(Cumulonimbus)Nimbus clouds(Cumulonimbus)

- are rain clouds- are rain clouds- appears grayish , bluish, or blackish- appears grayish , bluish, or blackish

Kinds of CloudsKinds of Clouds• Nimbus clouds(Cumulonimbus)Nimbus clouds(Cumulonimbus)

- composed of bigger droplets ready to - composed of bigger droplets ready to fall as rainfall as rain

- seen during heavy rain or thunderstorm- seen during heavy rain or thunderstorm

Cloud in a jar Cloud in a jar activity:activity:•ObserveObserve

•Discussion on the Discussion on the result of the activityresult of the activity

Video clip viewingVideo clip viewing

Water CycleWater Cycle

The water cycle affects both The water cycle affects both climate and weatherclimate and weather

• When clouds cover the entire sky , the temperature When clouds cover the entire sky , the temperature directly below the clouds is lower. It is cooler because directly below the clouds is lower. It is cooler because clouds reflect the heat of the sun in outer spaceclouds reflect the heat of the sun in outer space

•Clouds protect us from sun’s radiation by covering the space above us.

Precipitation

• Water that falls from the clouds• Air temperature determines the form of

precipitation that falls• 4 main types of Precipitation: Rain, Sleet,

Snow and Hail

Types of Precipitation

RainRain SleetSleet

SnowSnow HailHail

Different kinds of precipitationDifferent kinds of precipitation• Snow , sleet and hailSnow , sleet and hail

– They are solidThey are solid– Droplets of water in the clouds become solid Droplets of water in the clouds become solid

when the temperature of the air is very low when the temperature of the air is very low and water becomes frozenand water becomes frozen

Different kinds of precipitationDifferent kinds of precipitation

• Drizzle or showerDrizzle or shower

Different kinds of precipitationDifferent kinds of precipitation

• Thunderstorm Thunderstorm – – raindrops are big and they pour for raindrops are big and they pour for about an hourabout an hour- usually accompanied by lightning and - usually accompanied by lightning and thunderthunder

Severe WeatherThunderstorms

Lightning

Tornadoes

More Severe Weather

Hurricanes Blizzards

• When rain fall heavily, the weather is When rain fall heavily, the weather is described as rainy.described as rainy.

In the Philippines, rainy weather is In the Philippines, rainy weather is accompaniedaccompanied by thunder and lightning. by thunder and lightning.

•In Metro manila and other areas , In Metro manila and other areas , heavy rains are usually followed by heavy rains are usually followed by floods.floods.

Instruments used to measure Instruments used to measure weather conditionweather condition• Rain gaugeRain gauge

- a collection of pail with a ruler to - a collection of pail with a ruler to measure the depth of rain water.measure the depth of rain water.

Instruments used to measure Instruments used to measure weather conditionweather condition

• A Psychrometer is used to measure A Psychrometer is used to measure humidity. It has two bulbs in order to humidity. It has two bulbs in order to function properly. The two bulbs are wet function properly. The two bulbs are wet and dry. The temperature difference and dry. The temperature difference between the two is noted.between the two is noted.

• An Anemometer is an instrument which is An Anemometer is an instrument which is used to measure the speed or force of used to measure the speed or force of wind and is mostly found in weather wind and is mostly found in weather stations. This term was derived from a stations. This term was derived from a Greek word known as 'enomos' which Greek word known as 'enomos' which means 'wind'.means 'wind'.

• Years ago farmers would use the wind vane to Years ago farmers would use the wind vane to keep an eye on the winds direction. If the wind keep an eye on the winds direction. If the wind was blowing strong from a certain direction it was blowing strong from a certain direction it would mean rain was on it's way. would mean rain was on it's way.

At small public airports they have a wind sock At small public airports they have a wind sock flying so a pilot can tell how the wind is blowing flying so a pilot can tell how the wind is blowing to prepare for a landing/takeoff.to prepare for a landing/takeoff.

PAGASAPAGASA

• (Philippine Atmospheric , Geophysical, (Philippine Atmospheric , Geophysical, and Astronomical Service Administrationand Astronomical Service Administration

• observes weather conditions, issued observes weather conditions, issued warning signals and storms warning signals and storms

PAGASAPAGASA

• Philippines is always visited by tropical Philippines is always visited by tropical cyclones because it is in the typhoon belt.cyclones because it is in the typhoon belt.

• Tropical cyclones are weather Tropical cyclones are weather disturbances when it grows, it develops disturbances when it grows, it develops into a typhoon or bagyo.into a typhoon or bagyo.

Weather forecast Weather forecast

Weather ForecastWeather Forecast

Weather ForecastWeather Forecast

GeneralizationGeneralization

• Different factors affect and determine Different factors affect and determine weather conditions.weather conditions.

• Weather condition changes from time to Weather condition changes from time to time , thus everybody should always be time , thus everybody should always be ready.ready.

ValuingValuing•Always be ready to Always be ready to

protect ourselves from protect ourselves from the different weather the different weather conditionsconditions..

EvaluationEvaluationAnswer page 325Answer page 325

A.A.Fill in the blanks with the correct Fill in the blanks with the correct words to complete the sentences.words to complete the sentences.

B.B.Match the weather instruments Match the weather instruments to its use.to its use.

Can you identify these clouds?Can you identify these clouds?

THANK YOU THANK YOU

FOR LISTENINGFOR LISTENING

• Earth’s tilt at an angle of Earth’s tilt at an angle of 23.523.5 degrees to degrees to the plane of its orbit around the Sun.the plane of its orbit around the Sun.

• Major components of Earth that influence Major components of Earth that influence weather are: weather are: atmosphere, land forms, and atmosphere, land forms, and water. water.

• About About 70%70% of Earth’s surface is of Earth’s surface is covered by oceans.covered by oceans.

Education

Ppt elements that affect weather