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Natuurwetenskappe

Graad 4

Energie en verandering

Module 27

Die gevaar van sonbrand

Aktiwiteit:

Om op die gevaar van sonbrand te wys

[LU 2.1]

Skryf so veel as moontlik dinge neer waarvoor die son gebruik word.

Die son is eintlik ‘n ster wat die aarde van lig en warmte voorsien. Die son se strale is ontsettend sterk en dit is dus baie belangrik dat ons onsself teen hierdie strale moet beskerm. Dit is baie makliker om skade aan jou vel te voorkom as wat dit is om dit later in jou lewe te herstel.

Hou ‘n groepgesprek oor die skade wat son aan jou vel kan aanrig en voltooi dan die take.

  1. As jy sonder voorsorg te lank in die son speel, kan die volgende gebeur:
  1. Dink wat jy nodig het om jouself teen die son te beskerm. Plak advertensies wat jy uit ou tydskrifte knip op ‘n vel papier.
  1. Hoekom, dink jy, is daar steeds mense wat in die son wil lê en sonbrand om bruin te brand?
  1. Skryf ‘n briefie aan julle skoolhoof om aan hom/haar ‘n paar wenke te gee oor hoe die kinders in jou skool teen sonskade beskerm kan word. Vra jou onderwyser om al die briefies aan hom/haar te oorhandig.

Assessering

LEERUITKOMS 2: KONSTRUKSIE VAN WETENSKAPLIKE KENNISDie leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard

Dit is duidelik wanneer die leerder

2.1 betekenisvolle inligting onthou.

Memorandum

Skryf so veel as moontlik dinge neer waarvoor die son gebruik word.

  • Son verskaf energie aan die mens, plante en diere.
  • Die son verhit die aarde.
  • Die son verlig die aarde.
  • Die son hou ons warm.
  • Die son laat plante groei.
  • Enige ander aanvaarbare antwoord.

Hou ‘n groepgesprek oor die skade wat son aan jou vel kan aanrig en voltooi dan die take.

1. Jou vel kan baie seer verbrand, selfs blase kan vorm.

2. Leerders knip prentjies uit plak dit in die oop spasie. Hulle kan selfs werklike produkte bring wat in die klas bespreek kan word.

3. Modelle wat in advertensies gebruik word, word altyd as sonbruin voorgehou. Dit plaas druk op die gewone mens om ook so te lyk. (Gesels sommer hier oor groepsdruk!) Enige aanvaarbare antwoord.

4. Laat hulle briefies skryf om aan die skoolhoof te gee. Daar behoort interessante dinge uit te kom.

Mnr. Breinsel:

  • Ongeveer 150 miljoen km van die aarde af.
  • Temperatuur 15 miljoen grade C.

Questions & Answers

Discuss the differences between taste and flavor, including how other sensory inputs contribute to our  perception of flavor.
John Reply
taste refers to your understanding of the flavor . while flavor one The other hand is refers to sort of just a blend things.
Faith
While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma
Kamara
which drugs can we use for ulcers
Ummi Reply
omeprazole
Kamara
what
Renee
what is this
Renee
is a drug
Kamara
of anti-ulcer
Kamara
Omeprazole Cimetidine / Tagament For the complicated once ulcer - kit
Patrick
what is the function of lymphatic system
Nency Reply
Not really sure
Eli
to drain extracellular fluid all over the body.
asegid
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include: 1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
Adama
what is anatomy
Oyindarmola Reply
Anatomy is the identification and description of the structures of living things
Kamara
what's the difference between anatomy and physiology
Oyerinde Reply
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
AI-Robot
what is enzymes all about?
Mohammed Reply
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
yes
Prince
how does the stomach protect itself from the damaging effects of HCl
Wulku Reply
little girl okay how does the stomach protect itself from the damaging effect of HCL
Wulku
it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL
Kamara
function of digestive system
Ali Reply
function of digestive
Ali
the diagram of the lungs
Adaeze Reply
what is the normal body temperature
Diya Reply
37 degrees selcius
Xolo
37°c
Stephanie
please why 37 degree selcius normal temperature
Mark
36.5
Simon
37°c
Iyogho
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature
Stephanie
37A c
Wulku
what is anaemia
Diya Reply
anaemia is the decrease in RBC count hemoglobin count and PVC count
Eniola
what is the pH of the vagina
Diya Reply
how does Lysin attack pathogens
Diya
acid
Mary
I information on anatomy position and digestive system and there enzyme
Elisha Reply
anatomy of the female external genitalia
Muhammad Reply
Organ Systems Of The Human Body (Continued) Organ Systems Of The Human Body (Continued)
Theophilus Reply
what's lochia albra
Kizito
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Source:  OpenStax, Natuurwetenskappe graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11097/1.1
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