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Natural sciences

Grade 4

Planet earth and the universe

Module 44

Weather forecasting

Activity:

Talking about weather forecasting

[lo 1.1, 1.2, 1.3, 2.1, 3.1]

Where do weather forecasters get their information?

They get the information from weather satellites, weather balloons and earth stations. Metsat is the name of a weather satellite that orbits the earth.

A camera on Metsat is used for taking photographs of clouds and snow and it also shows approaching storms. The photographs can also be used to identify warm and cold areas of the earth.

Information is collected about the temperature, humidity (this is the moisture in the air), wind speeds and directions, the types of clouds, air pressure (atmospheric pressure) and rainfall. All the information is sent to a weather station where it is fed into a computer for processing.

After this has been done, a weather chart is drawn and sent to all the media (television, radio and newspapers).

Which one of you would like to present today’s weather to the class as it is presented on television?

Try to get hold of a newspaper that has a weather chart each day. Cut it out and study the key that indicates the different types of weather carefully.

Look at the following example:

Study the key and write down the correct names of the signs:

Draw a picture to show your favourite kind of weather.

SUN

RAIN

OVERCAST

Keep your own weather chart for one week. Draw the sun, raindrops or a cloud in the weather column, and fill in the wind speed and temperature.

DayWeatherWind speedTemperatureMondayTuesdayWednesdayThursdayFridaySaturdaySunday

Assessment

LEARNING OUTCOME 1 : SCIENTIFIC INVESTIGATIONS

The learner will be able to act confidently on curiosity about natural phenomena, and to investigate relationships and solve problems in scientific, technological and environmental contexts.

Assessment Standard

We know this when the learner

1.1 plans investigations;

1.2 leads investigations and collects data;

1.3 evaluates data and provides feedback on observations.

LEARNING OUTCOME 2 : CONSTRUCTING SCIENCE KNOWLEDGE The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

Assessment Standard

We know this when the learner

2.1 recalls significant information.

LEARNING OUTCOME 3 : SCIENCE, SOCIETY AND THE ENVIRONMENT The learner will be able to demonstrate an understanding of the interrelationships between science and technology, society and the environment.

Assessment Standard

We know this when the learner

3.1 understands science and technology in the context of history and personal knowledge.

Memorandum

Mr Brain Cell:

  • What is the correct name for someone who predicts the weather?Answer:
  • A meteorologist

Study the key and write down the correct names: see key on map.

Mr Brain Cell:

  • Find out what the following words mean:
  • High pressure
  • Low pressure
  • A front

High pressure: When a high-pressure system moves over the land, it normally means that it is going to be a fine day. Cold air moves out and down and becomes warmer.

Low pressure: A low-pressure system normally brings rain and cloudy conditions. Cold air moves in and up and becomes cold.

Front: We frequently see a front approaching the land. This is only the direction in which the cold or warm air moves.

Questions & Answers

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Akash Reply
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Maciej
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s. Reply
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Devang Reply
are you nano engineer ?
s.
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Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
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s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
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SUYASH Reply
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SUYASH
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s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
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Damian Reply
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Cied
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I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
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Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
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AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
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after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
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Prasenjit
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Damian
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Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
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Uday
I'm interested in Nanotube
Uday
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Prasenjit Reply
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Source:  OpenStax, Natural sciences grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11096/1.1
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