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Natural sciences

Grade 4

Planet earth and the universe

Module 43

Talking about the weather

Activity:

Talking about the weather

[lo 1.3, 2.1]

One of the things that change most from day to day is the weather. The weather influences our decisions about where we would like to live, the clothes that we wear and the things that we do.

We always want to know what the weather will be like. We therefore regularly look at the weather forecasts on television, and listen to it on the radio and read about it in the newspapers.

Discuss this in your group and suggest some reasons for wanting to know what the weather will be like.

What is weather actually?

  • Warmth and sunlight travel through the earth’s atmosphere. The rays of the sun affect the air in four different ways: It changes the temperature, the humidity, the air pressure and the wind.

Write a sentence about each of these. Look at the pictures that illustrate them:

Temperature

Humidity

Air pressure

Wind

Try the following:

Make a flag and hang it outside to find out how strong the wind is.

Hang spoons from a metal clothes hanger using nylon to tie them and listen to the tinkling that tells you that the wind is blowing.

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

1.3 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.

Memorandum

  • Name a few reasons in your group why it might be useful to know in advance what the weather will be like.

Possible reasons

  • When you go out, you want to know whether it is necessary to take a coat or rain jacket, especially to sports and outdoor events
  • Farmers plan their daily chores according to the weather
  • In case of danger (e.g. hurricane or tornado) safety measures must already be in place
  • We want to know whether we can hang out our washing!

Temperature: The sun heats the earth. The heat is reflected off the clouds and the earth to determine the temperature of the air.

Humidity: Water vapour rises from the earth and sea to form clouds. When many water droplets accumulate, rain falls to the earth. Humidity is the moisture content of the air.

Pressure: Atmospheric pressure is determined by air that is forced in different directions.

Wind: Wind is air that moves rapidly.

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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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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