Science 3rd, UNIT 5
Jan, 2014
Science 3rd grade
UNIT 5
THE ATMOSPHERE AND THE WEATHER
By: J. Cesar Brazo Mur
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
The ATMOSPHERE is a layer of air that surrounds the Earth
WIND is air in motion
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
MAIN FUNCTIONS OF THE ATMOSPHERE It protects us from solar radiations and the cold from the space
Clouds and weather form in the Atmosphere
It regulates electrical and magnetic forces
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
LAYERS OF THE ATMOSPHERE
The Atmosphere is made up of 5 layers: - Exosphere - Thermosphere - Mesosphere - Stratosphere - Troposphere
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
Exosphere
UPPER LAYER ARTIFICIAL SATELLITES ASTRONAUTS
Thermosphere
Mesosphere ozone layer
Stratosphere Troposphere
AURORAS COLDEST LAYER METEORITES JET AEROPLANES LOWER LAYER WEATHER & PLANES
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
AURORAS are brilliant lights in the Earth's atmosphere caused by the electrons from the solar wind.
They occur at the North and South Poles
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
IMPORTANT DEFINITIONS! CLIMATE: The state of the atmosphere at a place during a long period of time (normally, years) WEATHER: The state of the atmosphere at a place at a moment (day, week...)
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
One example... The CLIMATE at the desert is normally hot and dry...
but today, the WEATHER is rainy
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
It can be: TEMPERATURE hot (high temp.) cold (low temp.) T H E
W E E L A E O M F T H E E N R T S
Amount of rainfall PRECIPITATION It can be in form of: rain (liquid water) snow (solid water: snowflakes) hail (solid water: ice)
HUMIDITY Amount of water vapour in the air
It can be: breeze (soft wind) WIND gale (strong wind) hurricane (very strong wind)
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
RAIN and SNOW come from clouds and at the end, they return to the clouds again. This is what we call...
2nd
1st
El Tomillar, J.C. Brazo
3rd
4th
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Science 3rd, UNIT 5
Jan, 2014
METEOROLOGY is the science that studies climate
METEOROLOGISTS are scientists that predict the weather by studying atmospheric factors meteorological devices
artificial satellites and digital instruments
they use
THERMOMETERS measure temperature
ANEMOMETERS measure the speed of the wind
PLUVIOMETERS measure the rainfall HYGROMETERS measure humidity
El Tomillar, J.C. Brazo
WEATHER VANES show the direction of the wind
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Science 3rd, UNIT 5
Jan, 2014
We all like sunny and warm weather. We can go out, play and travel... However, bad weather do not allows us to do many things and sometimes it can be dangerous.
SEVERE WEATHER is extremely bad weather
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
THUNDERSTORMS
SNOWSTORMS
Electric storm with
Storms with lots of snow
thunders and lightnings
instead of rain
(and frequently rain)
SEVERE FLOODS
WEATHER
DROUGHTS
Can be caused by:
It doesn't rain or
- Heavy rain
snow (or it does very
- Rivers rising
little) for a long time
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
THUNDERSTORMS
SNOWSTORMS
Electric storm with
Storms with lots of snow
thunders and lightnings
instead of rain
(and frequently rain)
SEVERE FLOODS
WEATHER
DROUGHTS
Can be caused by:
It doesn't rain or
- Heavy rain
snow (or it does very
- Rivers rising
little) for a long time
El Tomillar, J.C. Brazo
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Science 3rd, UNIT 5
Jan, 2014
What do meteorologists use to show the weather?
WEATHER MAPS that have some symbols like...
sunny
cloudy
rainy
heavy rain stormy snowy
WIND ARROWS indicate the direction and speed of the wind
El Tomillar, J.C. Brazo
foggy
SOFT WIND STRONG WIND
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