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Natuurwetenskappe

Grrad 4

Materie en stowwe

Module 53

Die gebruik van materie in ons huise

Aktiwiteit:

Om saam te kan gesels oor die gebruik van materie in ons huise, veral plastiek

[lu 1.1.1]

Plastiek

Dink gou aan enige gebruik vir ‘n plastieksak. Moenie net aan gewone alledaagse dinge dink nie, wees kreatief en dink oulike idees uit. Hoeveel gebruike kon julle groep in 2 minute uitdink? Gee terugvoering aan die klas.

Probeer die volgende (1):

Neem ‘n joghurtbakkie, ‘n rekkie en sommige van die volgende materiale: kombuispapier, karton, wol, katoen, tinfoelie, plastiek, ‘n servet. Neem elkeen van die materiale, plaas dit op die joghurtbakkie en bind die rekkie om. Drup ‘n teelepel water op elke stuk materiaal en kyk wat gebeur. Syfer die water deur?

Wat was die beste materiaal om die water uit te hou?

Probeer die volgende (2):

Kom ons maak ‘n valskermpie. Gebruik die volgende materiale om ‘n valskerm te maak en gooi dit elke keer van dieselfde hoogte af: koerantpapier, plastiek, katoensakdoek, karton, sneesdoekie, skryfpapier. Kyk watter materiale werk die beste.

Skryf die lede van julle gesin se name onder mekaar neer. Skryf die plastiekitems wat hulle daagliks gebruik, langs elkeen se naam neer. Wie gebruik die meeste plastiekitems in julle huis?

Ongelukkig neem dit baie lank vir plastiek om te ontbind. Die regering het vanaf 2003 standpunt hieroor ingeneem en alle gratis plastieksakke by winkels verbied. Kliënte moet nou hulle eie inkopiesakke saamneem wanneer hulle inkopies doen, of moet nuwes koop.

Hou ‘n redenaarskompetisie om hierdie aspek te bespreek.

Ontwerp ‘n nuwe soort winkeldrasak om die probleme wat bespreek is, op te los.

Plak alle soorte plastiek wat jy in jou huis kan kry op 'n vel papier

Tot onlangs was die plastieksakke ‘n groot probleem in ons pragtige land, want dit het ons land ontsier deurdat dit oral rondgelê het. Dink net waar hierdie sakke oral beland het en waarvoor dit alles gebruik en misbruik is.

Jy tel ‘n plastieksak in die straat op. Dit is vuil, geskeur en vol gemors. Die plastieksak se naam is Plassie. Teken nou ‘n strokiesprent oor die lewe wat Plassie tot nou toe gelei het: ‘n lewe vol gevaar, met baie wedervaringe, maar tog het hy oral ‘n goeie doel gedien.

Assessering

LEERUITKOMS 1: WETENSKAPLIKE ONDERSOEK

Die l eerder 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

1.1 ondersoeke beplan, bv.:

1.1.1 stel aktiwiteite voor om met die materiaal te probeer doen.

Memorandum

Probeer die volgende (1)

  • Laat leerders self die eksperiment doen.

Probeer die volgende (2)

  • Laat leerders self die eksperiment doen.

Questions & Answers

it is the relatively stable flow of income
Chidubem Reply
what is circular flow of income
Divine Reply
branches of macroeconomics
SHEDRACK Reply
what is Flexible exchang rate?
poudel Reply
is gdp a reliable measurement of wealth
Atega Reply
introduction to econometrics
Husseini Reply
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hi
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Mahesh
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Tom
Why is unemployment rate never zero at full employment?
Priyanka Reply
bcoz of existence of frictional unemployment in our economy.
Umashankar
what is flexible exchang rate?
poudel
due to existence of the pple with disabilities
Abdulraufu
the demand of a good rises, causing the demand for another good to fall
Rushawn Reply
is it possible to leave every good at the same level
Joseph
I don't think so. because check it, if the demand for chicken increases, people will no longer consume fish like they used to causing a fall in the demand for fish
Anuolu
is not really possible to let the value of a goods to be same at the same time.....
Salome
Suppose the inflation rate is 6%, does it mean that all the goods you purchase will cost 6% more than previous year? Provide with reasoning.
Geetha Reply
Not necessarily. To measure the inflation rate economists normally use an averaged price index of a basket of certain goods. So if you purchase goods included in the basket, you will notice that you pay 6% more, otherwise not necessarily.
Waeth
discus major problems of macroeconomics
Alii Reply
what is the problem of macroeconomics
Yoal
Economic growth Stable prices and low unemployment
Ephraim
explain inflationcause and itis degre
Miresa Reply
what is inflation
Getu
increase in general price levels
WEETO
Good day How do I calculate this question: C= 100+5yd G= 2000 T= 2000 I(planned)=200. Suppose the actual output is 3000. What is the level of planned expenditures at this level of output?
Chisomo Reply
how to calculate actual output?
Chisomo
how to calculate the equilibrium income
Beshir
Criteria for determining money supply
Thapase Reply
who we can define macroeconomics in one line
Muhammad
Aggregate demand
Mohammed
C=k100 +9y and i=k50.calculate the equilibrium level of output
Mercy Reply
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money as unit of account means what?
Kalombe
A unit of account is something that can be used to value goods and services and make calculations
Jim
all of you please speak in English I can't understand you're language
Muhammad
I want to know how can we define macroeconomics in one line
Muhammad
it must be .9 or 0.9 no Mpc is greater than 1 Y=100+.9Y+50 Y-.9Y=150 0.1Y/0.1=150/0.1 Y=1500
Kalombe
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Kalombe
hi can someone help me on this question If a negative shocks shifts the IS curve to the left, what type of policy do you suggest so as to stabilize the level of output? discuss your answer using appropriate graph.
Galge Reply
if interest rate is increased this will will reduce the level of income shifting the curve to the left ◀️
Kalombe
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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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