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Natuurwetenskappe

Die aarde en daarbuite

Die sterre

Opvoeders afdeling

Memorandum

  • Volg die aanwysings in die module:
  • Vraag 2 : Ja. Wes. Nee
  • Vraag 3: Gevolgtrekking: die sterre is elke aand vier minute vroeër bokant die baken – die beweging is weswaarts.

Leerder afdeling

Inhoud

Aktiwiteit: om die begrip konstellasies te kan bespreek en die beweging van sterre te ondersoek [lu 1.2, lu 2.3]

In antieke tye het sterrekundiges helder sterre in groepe wat patrone gevorm het, groepeer. Hierdie patrone word konstellasies genoem en is na mense, gode en diere vernoem. Elke konstellasie het ‘n Latynse naam. As gevolg van die omwenteling van die aarde om die son, verskyn verskillende konstellasies, verdwyn dan, en verskyn weer later gedurende die loop van ‘n jaar.

  • Daar bestaan “sterkaarte” vir die Noordelike, sowel as die Suidelike Halfrond. Konstellasies word verskillend op verskillende “sterkaarte” aangedui. Ons hoef ons egter nie daaroor te bekommer nie, want daar is nie ‘n “korrekte” manier om konstellasies te teken nie.

Die konstellasies van die suidelike halfrond

Beweging van sterre en konstellasies

  • As jy vir die eerste keer buitentoe gaan om na die konstellasies te kyk, mag dit vir jou onmoontlik lyk om enige konstellasie tussen die massa sterre in die hemelruim op te spoor. As jy egter een keer ‘n konstellasie gevind het, sal jy dit die volgende keer baie maklik opspoor.
  • Een van die dinge wat dit moeilik maak om sterre op te spoor is die feit dat die sterre die heeltyd “beweeg”. Hulle behou hul posisie ten opsigte van mekaar, maar hulle verskyn elke aand en hulle beweeg deur die lug gedurende die nag.
  • Sommige sterre skyn heelnag, terwyl ander verdwyn en nuwes hul plekke inneem. Hierdie beweging vind baie stadig plaas en jy sal dit nie opmerk as jy net na die sterre staan en kyk nie.

‘n Eksperiment om vas te stel of sterre beweeg

1. Kies ‘n helder ster of konstellasie, bv. die Suiderkruis, en staan êrens sodat die ster/konstellasie presies bokant ‘n vaste baken (bv. ‘n boom of die dak van ‘n huis) is.

2. Teken die tyd aan en keer een uur later na die PRESIESE posisie terug.

Het die ster/konstellasie beweeg?_________________________

Indien wel, in watter rigting (wes, noord, oos of suid)? ______________________

Het die ster/konstellasie se posisie t.o.v. ander sterre verander?

_____________________________________________________________________

3. Bestudeer die posisie van jou ster/konstellasie vir ‘n paar agtereenvolgende aande en teken telkens die presiese tyd aan wanneer dit jou baken bereik.

Aand 1 Aand 2 Aand 3 Aand 4 Aand 5
___:___ ___:___ ___:___ ___:___ ___:___

Skryf jou gevolgtrekking neer:

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

Assessering

Leeruitkomste 1: Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurlike verskynsels te regeer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Assesseringstandaard 1.2: Dis duidelik wanneer die leerder ondersoeke uitvoer en data versamel.

Leeruitkomste 2: Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.3: Dis duidelik wanneer die leerder inligting interpreteer.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natuurwetenskappe graad 6. OpenStax CNX. Sep 17, 2009 Download for free at http://cnx.org/content/col11080/1.1
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