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Natuurwetenskappe

Graad 8

Biodiversiteit: aanpassings en oorlewing

Module 30

Volhoubare aktiwiteite

VOLHOUBAARHEID: Wat sê die woordeboek? lewensondersteunend; onbepaald kan aangaan; van " sustenere" – Latyn vir "om van onder af te ondersteun"

Lewe op aarde is net volhoubaar as:

  • die natuur nie deur die gebruik van materiale en die stort van afval beskadig word nie;
  • hulpbronne nie uitgeput word nie;
  • die welsyn van die mens en alle lewende organismes nagestreef word.

Beginsels vir volhoubare ontwikkeling:

  • Beplan behoeftes.
  • Beperk bedreiging van die natuur tot die minimum.
  • Bewaar die natuur vir toekomstige geslagte.
  • Verstaan en betuur menslike bevolkingsgroei.

Aktiwiteit:

Om ‘n klasbespreking te voer oor die volhoubaarheid van hulpbronne

VOLHOUBARE LEWE EN HULPBRONBENUTTING

Sê of die volgende aspekte volhoubaar is al dan nie:

ASPEK JA NEE
SONENERGIE-SISTEME
FOSSIELBRANDSTOWWE
MYNBOU
BOSBOU
HIDROËLEKTRIESE SKEMAS
KERNREAKTORS

Bespreek elkeen kortliks in terme van volhoubaarheid en maak enkele opmerkings by elk:

1. Sonerenergie-sisteme:

2. Fossielbrandstof:

3. Mynbou:

4. Bosbou:

5. Hidroëlektriese skemas:

6. Kernreaktors:

7. Tot watter slotsom kom jy?

Assessering van KLASBESPREKING OOR HULPBRONNE:

Kon jy die regte afleidings uit die klasbespreking maak?

[3.2]

Assessering

LU 3

Wetenskap, die Gemeenskap en die Omgewing

Die leerder is in staat om begrip van die onderlinge verband tussen wetenskap en tegnologie, die samelewing en die omgewing te toon.

Dit is bewys as die leerder:

3.1 wetenskap as ‘n menslike aktiwiteit kan verstaan;

3.2 volhoubare gebruik van die aarde se hulpbronne verstaan.

Memorandum

Volhoubare aktiwiteite

Aktiwiteit:

KLASBESPREKING – VOLHOUBARE AKTIWITEITE EN HULPBRONBENUTTING

Lei klasbespreking – raak alle punte aan

Questions & Answers

what is mutation
Janga Reply
what is a cell
Sifune Reply
how is urine form
Sifune
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mahase Reply
classification of plants, gymnosperm features.
Linsy Reply
what is the features of gymnosperm
Linsy
how many types of solid did we have
Samuel Reply
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Samuel
What is Atoms
Daprince Reply
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Merolyn
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Merolyn
what's bulbourethral gland
Eduek Reply
urine is formed in the nephron of the renal medulla in the kidney. It starts from filtration, then selective reabsorption and finally secretion
onuoha Reply
State the evolution relation and relevance between endoplasmic reticulum and cytoskeleton as it relates to cell.
Jeremiah
what is heart
Konadu Reply
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Konadu
how is urine formed in human
Rahma
what is the diference between a cavity and a canal
Pelagie Reply
what is the causative agent of malaria
Diamond
malaria is caused by an insect called mosquito.
Naomi
Malaria is cause by female anopheles mosquito
Isaac
Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
Olalekan
a canal is more needed in a root but a cavity is a bad effect
Commander
what are pathogens
Don Reply
In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
Zainab
A virus
Commander
Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
Commander
where does digestion begins
Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
Davonte
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Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
Achor
what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
Alfreda
Biology is the study of how living organisms live and survive in a specific environment
Sifune
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Source:  OpenStax, Natuurwetenskappe graad 8. OpenStax CNX. Sep 12, 2009 Download for free at http://cnx.org/content/col11049/1.1
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