<< Chapter < Page Chapter >> Page >

Natuurwetenskappe

Graad 5

Lewe en lewenswyse

Module 6

Plante wat sonder sade en blomme voortplant

Aktiwiteit:

Om vas te stel hoe sekere plante sonder blomme en sade voortplant

[lo 1.1, 1.2, 1.3]

Kom ons doen navorsing

Voordat ons kyk of plante sonder blomme en sade kan voortplant, kyk ons eers na die stappe waaruit wetenskaplike navorsing bestaan.

DIE PROBLEEM:

As jy ‘n probleem vir jou navorsing neerskryf, weet almal wat jy ondersoek.

Dit laat jou ook terselfdertyd dink aan wat jy gaan doen en wat jy gaan benodig vir die navorsing.

DIE METODE:

JY verduidelik hoe jy die navorsing gaan uitvoer en wat jy gaan benodig.

Jy kan egter nog nie sê wat jy uitgevind het nie.

WAARNEMING:

Jy maak aantekeninge van al die inligting wat jy versamel het, of as dit ‘n eksperiment is, skryf jy neer wat gebeur terwyl die eksperiment aan die gang is.

GEVOLGTREKKING:

Nou skryf jy neer wat jy uitgevind het, sodat jy dit met ander mense kan deel.

As jy die navorsing op hierdie wyse aanpak, kan jy verseker wees dat jy soos ‘n wetenskaplike te werk gaan. ‘n Wetenskaplike doen altyd navorsing om antwoorde op sy vrae te kry. Jy doen ook dikwels navorsing sonder dat jy dit weet!

Pas hierdie metode toe om iets oor voortplanting by plante uit te vind.

Probleem:

Om te sien of nuwe plante uit ou plante kan groei sonder dat sade gevorm word.

Metode:

Sny 'n blaaragtige tak (ongeveer 16 cm lank) van ENIGE van die volgende plante wat jy in jou tuin, woonbuurt of omgewing kan bekom:

Sny die onderste blare van die tak af (los net 2 of 3 blare). Ons noem die tak nou 'n steggie. Plant dit in 'n blik vol riviersand of goeie grond. Net 8 cm van die steggie mag bo die grond uitsteek. Maak dit goed nat.

Maak nou gate in 'n plastieksak en bedek die steggie sowel as die blik daarmee. Gebruik 'n stuk wol (tou) of 'n rekkie om die sak om die blik vas te bind.

Gebruik bostaande inligting om die finale produk te skets. Onthou die byskrifte!

Waarneming:

Verwyder die plastieksak na ses dae en verwyder die steggie uit die grond.

  1. Is jou steggies vars en groen of bruin en uitgedroog?
  1. Het iets onder aan jou steggie verskyn?
  1. As daar iets is, wat dink jy is dit? (blare, wortelhare, wortels)
  1. Hoekom het (iii) ontwikkel?

Plant weer jou steggie in dieselfde blik grond en bedek dit met die plastieksak. Verwyder die sak elke tweede dag (net gedurende die dag, bedek jou steggie snags) vir twee weke lank.

Die jong plantjie behoort nou sterk en gesond genoeg te wees om in vrugbare tuingrond oorgeplant te word!

Voortplanting deur middel van steggies

Die stingels van plante kan gebruik word om nuwe plante mee te kweek. Plante met sagte, groen stingels ontwikkel gou wortels, terwyl plante met houtagtige stamme langer neem. Die proses staan bekend as vegetatiewe voortplanting .

Voortplanting met lopers

Die aarbei

Die hoofplant vorm lopers wat uiteindelik nuwe plante vorm. Dit is ook 'n voorbeeld van vegetatiewe voortplanting.

  1. Kan jy nog ‘n plant noem wat met lopers voortplant?

Voortplanting met bolle

Sekere plante vorm bolle ondergronds wat later ontwikkel om nuwe plante te vorm. Kannas, keiserskroonblomme en sekere lelies word op dié manier in onbewoonde dele regoor ons land voortgeplant.

Miljoene blombolle wat deur deskundiges gekweek word, word jaarliks in ons land verkoop. Druk hulle net in die grond, gee genoeg water en jy sal aan die einde van die seisoen met 'n pragtige, kleurvolle massa beloon word!

Opdrag 5

Dahlias, anemone en affodille is net 'n paar voorbeelde. Besoek jou plaaslike kettingwinkel en kyk of jy blombolle te koop kan kry. Probeer die name van nog VYF soorte blombolle vasstel:

Assessering

LU 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.

 

Dit is duidelik wanneer die leerder:

1.1   ondersoeke beplan;

1.2   ondersoeke uitvoer en data versamel;

1.3       data evalueer en bevindinge kommunikeer;

 

Memorandum

  1. Waarneming
  1. vars en groen
  2. Ja
  3. wortels
  4. Die steggie groei en vorm dus ‘n nuwe plantjie.

(d) Gevolgtrekking – eie bewoording maar moet ‘n antwoord verskaf op die

probleemstelling, bv. plante kan sonder blomme en sade voortplant deurdat

steggies wortels groei.

(e) Hen-en-kuiken

Opdrag:

(a-e) Enige voorbeelde, bv. ranonkels, sporaksis, swaardlelies, sneeuklokkies, freesias.

Questions & Answers

what are the important of economic to accounting students with references
salihu Reply
Economics is important because it helps people understand how a variety of factors work with and against each other to control how resources such as labor and capital get used, and how inflation, supply, demand, interest rates and other factors determine how much you pay for goods and services.
Muhammad
explain the steps taken by the government in developing rural market?
Azeem Reply
contribution of Adam smith in economics
abel Reply
I will join
Dexter
I will join
Patrick
Hey
Fatima
Hey
Amir
Hello
AS
hey
Umarou
I love this book and i need extra Economic book
Amir
Hey
Amir
what's happening here
AS
I love this book and i need extra Economic book
Amir
what is the meaning of function in economics
Effah Reply
Pls, I need more explanation on price Elasticity of Supply
Isaac Reply
Is the degree to the degree of responsiveness of a change in quantity supplied of goods to a change in price
Afran
Discuss the short-term and long-term balance positions of the firm in the monopoly market?
Rabindranath Reply
hey
Soumya
hi
Mitiku
how are you?
Mitiku
can you tell how can i economics honurs(BSC) in reputed college?
Soumya
through hard study and performing well than expected from you
Mitiku
what should i prepare for it?
Soumya
prepare first, in psychologically as well as potentially to sacrifice what's expected from you, when I say this I mean that you have to be ready, for every thing and to accept failure as a good and you need to change them to potential for achievement of ur goals
Mitiku
parna kya hai behencho?
Soumya
Hallo
Rabindranath
Hello, dear what's up?
Mitiku
cool
Momoh
good morning
Isaac
pls, is anyone here from Ghana?
Isaac
Hw s every one please
Afran
Ys please I'm in Ghana
Afran
Hello
OLANIYI
pls anyone from Nigeria
OLANIYI
am a new candidate here, can someone put me 2ru
OLANIYI
hello
OLANIYI
Pls economic A level exam tomorrow pls help me
akinwale
am from Ghana
Jacob
hi
Charles
Pls economic A level exam tomorrow pls help me
akinwale
Hi
Dev
bol Diya discuss ab krega v
Dev
hello Mr. Rabindranath
Dev
what do you want Dimlare
Dev
yes tell me your desire to have it
Dev
to have what?
OLANIYI
Good luck
JOSEPH
I want to know about economic A level tomorrow pls help
Lerato
okay
Umarou
okay
Umarou
what is firms
Anteyi Reply
A firm is a business entity which engages in the production of goods and aimed at making profit.
Avuwada
What is autarky in Economics.
Avuwada
what is choice
Tia Reply
So how is the perfect competition different from others
Rev Reply
what is choice
Tia
please what type of commodity is 1.Beaf 2.Suagr 3.Bread
Alfred Reply
1
Naziru
what is the difference between short run and long run?
Ukpen Reply
It just depends on how far you would like to run!!!🤣🤣🤣
Anna
meaning? You guys need not to be playing here; if you don't know a question, leave it for he that knows.
Ukpen
pls is question from which subject or which course
Ada
Is this not economics?
Ukpen
This place is meant to be for serious educational matters n not playing ground so pls let's make it a serious place.
Docky
Is there an economics expert here?
Docky
Okay and I was being serous
Anna
The short run is a period of time in which the quantity of at least one inputs is fixed...
Anna
that is the answer that I found online and in my text book
Anna
Elacisity
salihu
Meaning of economics
Suraj Reply
It will creates rooms for an effective demands.
Chinedum Reply
different between production and supply
babsnof
Hii
Suraj
hlo
eshita
What is the economic?
Suraj
Economics is a science which study human behavior as a relationship between ends and scarce means which has an alternative use.
Mr
what is supply
babsnof
what is different between demand and supply
Debless Reply
Demand refers to the quantity of products that consumers are willing to purchase at various prices per time while Supply has to do with the quantity of products suppliers are willing to supply at various prices per time. find the difference in between
Saye
Please what are the effects of rationing Effect of black market Effects of hoarding
Atty Reply
Researchers demonstrated that the hippocampus functions in memory processing by creating lesions in the hippocampi of rats, which resulted in ________.
Mapo Reply
The formulation of new memories is sometimes called ________, and the process of bringing up old memories is called ________.
Mapo Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Natuurwetenskappe graad 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10980/1.2
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Natuurwetenskappe graad 5' conversation and receive update notifications?

Ask