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Natuurwetenskappe

Graad 4

Energie en verandering

Module 32

Die mens se gebruik van elektriese energie

Aktiwiteit:

Om te ondersoek hoe elektriese energie deur die mens gebruik word

[lu 1.2, 1.3, 2.2]

In ons land, Suid-Afrika

Ons kry ons elektrisiteit van kragsentrales wat elektrisiteit aan die hele land voorsien. Elke dorp of stad se energievoorsiening hang af van die grootte van die gebied, die getal huise, die getal fabrieke en die getal mense.

Knip prentjies uit ou tydskrifte om die gebruik van elektrisiteit in julle dorp of stad uit te beeld. Plak dit op ‘n vel papier.

Skryf ‘n kort sinnetjie oor energieverbruik in die volgende plekke. Beskryf hoe jou eie kultuurgroep deur die jare wat verby is veilige maniere gevind het om energie te gebruik.

Op plase:

In fabrieke:

In myngebiede:

In ons gemeenskap:

Maak jou eie lys van die plekke waar elektrisiteit in ons gemeenskap gebruik word.

Hieronder volg drie opdragte. Kies een en doen ‘n rolspel daaroor.

Daar is ‘n kragonderbreking in jou skool. hoe beïnvloed dit:

  1. jou?
  2. jou onderwyser?
  3. die opsigter?
  4. die sekretaresse?
  5. die skoolhoof?

Daar is sommige skole in ons land wat nie elektrisiteit het nie. Wat dink jy doen hulle om hulle skoolwerk te doen?

Daar is ‘n kragonderbreking in die hospitaal. hoe beïnvloed dit:

  1. die pasiënt?
  2. die dokter en verpleegpersoneel?
  3. die kombuis?
  4. die teater?

Daar is ‘n kragonderbreking in die supermark. hoe beïnvloed dit:

  1. die kliënt?
  2. die bestuurder?
  3. die kasregister?
  4. die bakkery-afdeling
  5. die vleisafdeling
  6. die yskaste?

Assessering

LEERUITKOMS 1: WETENSKAPLIKE ONDERSOEK

Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurlike verskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Assesseringstandaard

Dis duidelik wanneer die leerder

  • ondersoeke uitvoer en data versamel;
  • data evalueer en bevindings kommunikeer.

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

Assesseringstandaard

Dis duidelik wanneer die leerder

2.2 inligting kategoriseer.

Memorandum

In ons land Suid-Afrika

Skryf ‘n kort sinnetjie oor energieverbruik in die volgende plekke: (Die kinders moet hulle eie sinne volgens hul kulturele groep skryf, hoe deur die jare wat verby is, hulle veilige maniere gevind het om energie te gebruik. Hierdie sinne is net riglyne.)

Op plase:

Boere gebruik elektrisiteit om tyd, energie en geld te bespaar, maar dan het hy dalk nie so baie werkers nodig nie.

In fabrieke:

Fabrieke kan nie sonder elektrisiteit werk nie. Die masjiene wat produkte maak, werk baie lang ure.

In myngebiede:

Masjiene wat in myne gebruik word, gebruik elektrisiteit. Dit bespaar tyd en maak die myners se taak makliker.

In ons gemeenskap

Lys die plekke waar elektrisiteit in ons gemeenskap gebruik word.

  • Huise
  • Supermarkte
  • Apteke
  • Hospitale
  • Strate
  • Inkopiesentrums
  • Kerke
  • Enige aanvaarbare antwoord

Kolom AKolom BMaak nat klere droogTuimeldroërKyk stories en natuurprogrammeTelevisieNeem boodskappe wanneer iemand nie tuis is nieTelefoonantwoordmasjienHou die lug koel in ‘n vertrekLugversorgerKook kos daaropStoofWas vuil klereWasmasjienMaak ons klere weer netjiesStrykysterLuister na musiekHoëtroustel

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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