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4.7 Die gevare van besoedeling

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Natuurwetenskappe

Graad 4

Materie en stowwe

Module 57

Die gevare van besoedeling

Aktiwiteit:

Om die gevare van besoedeling te kan bespreek en ‘n verskil te probeer maak

[lu 3.1.2, 3.2.1]

Ongelukkig kan materie besoedeling veroorsaak. Ons almal weet hoe belangrik dit is om ons omgewing te bewaar en besoedeling so ver as moontlik te probeer verhoed.

Kom ons gaan stap op ons skoolterrein. Kyk goed na jou omgewing en skryf jou bevindinge neer.

Skryf vier goeie dinge neer wat jy op die skoolterrein sien.

Skryf vier dinge neer wat jy gesien het wat jou ontstel, of wat ons omgewing negatief kan beïnvloed.

Kies nou een van die negatiewe dinge en skryf ‘n brief aan die skoolhoof om ‘n voorstel te maak hoe ons die probleem kan oplos.

Geagte __________________________

Laat ‘n onderwyser of ‘n lid van die leerderraad ‘n aankondiging oor die interkom maak oor die probleem en ‘n beroep op die leerders doen om iets daaromtrent te doen.

Rolspel: Jy is ‘n televisieverslaggewer. Jy moet verslag doen oor die toestand oor julle skoolterrein na pouse.

Bespreek nou metodes om besoedeling hok te slaan. Maak ‘n plakkaat en plak dit teen die muur voor julle klas.

Bespreek die nut van vullisverwydering deur die munisipaliteit. Vind uit hoe dit in die ou dae verwyder is en hoe die higiëniese omstandighede deur die jare verbeter het.

Kom ons gebruik afvalmateriaal en maak vir

Gemorsjors

  1. Kry ‘n lekker groot boks en trek dit oor met enige papier of karton wat weggegooi moet word.
  2. Maak vir hom ‘n gesig van ‘n kleiner boks en plak dit vas.
  3. Maak vir hom ore, ‘n neus, oë en ‘n mond met enige afvalgoed.
  4. Maak vir hom arms, bene en voete.
  5. Bêre hom in julle klas en gooi alle herwinbare papier daarin.

Maak klein plakkaatjies van idees om besoedeling te bestry en hang dit op ‘n vislyn dwarsoor julle klas. Gebruik skuifspelde om dit op te hang.

Assessering

LEERUITKOMS 3: WETENSKAP, DIE SAMELEWING 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 .

Assesseringstandaard

Dis duidelik wanneer die leerder

3.1 wetenskap en tegnologie in die konteks van geskiedenis en inheemse kennis verstaan, bv.

3.1.2 beskryf maniere om boodskappe oor lang en kort afstande te stuur.

3.2 die impak van wetenskap en tegnologie verstaan, bv.:

3.2.1 noem hoekom lopende water in ‘n huis mense se lewens makliker kan maak.

Memorandum

Besoedeling is ‘n ernstige probleem. As ons jeug dit goed verstaan en iets daaromtrent doen, kan die probleem beheer word. Beklemtoon dit baie, dit sal sommer die terrein, die klaskamer en die dorp skoon hou!

Morsjors

Maak dit ‘n klasaktiwiteit. Die kinders behoort dit baie te geniet!

Questions & Answers

What are the factors that affect demand for a commodity
Florence Reply
differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
what is labour ?
Lambiv
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Venny Reply
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Rezat Reply
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Eliyee
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Eliyee
t
WARKISA
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Lambiv
multiple choice question
Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
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Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
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Shukri
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Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
Abdisa Reply
any question about economics?
Awais Reply
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
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Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50. A,Calculate quantities of x and y which maximize utility. B,Calculate value of Lagrange multiplier. C,Calculate quantities of X and Y consumed with a given price. D,alculate optimum level of output .
Feyisa Reply
Answer
Feyisa
c
Jabir
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
Gsbwnw Reply
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product
Abdureman
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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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