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    This module and collection are included inLens: Siyavula: Natural Sciences (Gr. 7-9)
    By: Siyavula

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Om ‘n stof in terme van die kenmerke van materie te kan bespreek

Module by: Siyavula Uploaders. E-mail the author

NATUURWETENSKAPPE

Materie, Meting en Reaksies

Materie en Meting

OPVOEDER AFDELING

Memorandum

Wright broers:

  • Is dit broos of hard en taai?
  • Kan dit baie druk weerstaan?
  • Kan dit elektrisiteit gelei?
  • Is dit hitte-bestand?
  • Is dit vuurwerend?
  • Sal dit roes?
  • Is dit aantreklik?
  • Is dit lig of swaar?
  • Sal dit ‘n gladde oppervlakte vorm wat min weerstand bied?
  • Is dit ‘n goeie hitte-isoleerder?

Goud: dit is nie te hard nie, maar het ‘n baie lang lewensduur omdat dit nie met ander stowwe reageer nie; en dit vertoon mooi!

LEERDER AFDELING

Inhoud

AKTIWITEIT: Om ‘n stof in terme van die kenmerke van materie te kan bespreek [LU 2.3]

Die basiese eienskappe van materie bly altyd dieselfde en kan waargeneem word:

  • voorkoms (kleur, tekstuur, reuk, geur en vorm)
  • hardheid
  • massa
  • oplosbaarheid
  • buigbaarheid
  • sterkte
  • of dit ‘n suur, alkali of sout is

Keuse van geskikte stof:

Wanneer ‘n stof vir ‘n sekere doel gebruik moet word, sal dit gekies word na aanleiding van die funksie wat dit moet verrig. Die eienskappe van die stof sal altyd in gedagte gehou moet word, byvoorbeeld:

  • whether it is flexible;
  • whether it is strong enough;
  • whether and how it reacts with other substances.

Watter vrae oor die eienskappe van materie sou die Wright-broers gevra het toe hulle ‘n geskikte stof vir hul eerste vliegtuig moes kies?

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Hoekom is goud ‘n geskikte stof vir die maak van juwele?

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Assessering

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

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer: identifiseer kernidees in die teks, vind patrone in aangetekende data en maak gevolgtrekkings uit inligting in verskeie vorme (prente, diagramme, ens.).

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Definition of a lens

Lenses

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What is in a lens?

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Definition of a lens

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A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

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