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Lenses

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  • GETSenPhaseNS display tagshide tags

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

    Review Status: In Review

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Toets jou kennis

Module by: Siyavula Uploaders. E-mail the author

NATUURWETENSKAPPE

Materie, Meting en Reaksies

Reaksies tussen soorte materie: Sure en Basisse

OPVOEDER AFDELING

Memorandum

TOETS JOU KENNIS

1. Bitter; glibberig/glad

2. Geel

3. Indikator

4. Basis

5. Kalk; neutraliseer

6. Salpeter; fosfor

7. Universele aanwyser

LEERDER AFDELING

Inhoud

AKTIWITEIT: Toets jou kennis [LU 2.1]

Jy mag die inhoud van die module gebruik om jou te help om die volgende sluitingsoefeninge te doen. Dit sal dan ook dien as ‘n opsomming van die belangrike feite wat jy kan gebruik wanneer jy voorberei vir die moduletoets.

1. Basisse proe __________________________ en voel ___________________

2. Om die suurheid of alkaliniteit van stowwe vas te stel, kan ons dit by ‘n BTB-

oplossing voeg. Wanneer die kleur verander na ___________________________

weet ons dat die bygevoegde stof ‘n suur is.

3. ‘n _________________________ bv. swart tee, kan ook gebruik word om vas te stel of ‘n stof ‘n suur of ‘n basis is.

4. Wanneer jy ‘n bietjie bytsoda in water oplos en ‘n paar druppels daarvan op rooi lakmoespapier plaas, sal die papier blou word. Dit sê vir ons dat bytsoda ‘n _________________________________________________________ is.

5. Die meeste gewasse, veral groente, het neutrale grond nodig om goed te kan

groei. As daar te veel suur in die grond is, voeg die boere ______________________ by om die suur in die grond te ____________________________________________.

6._______________________________________ -suur is teenwoordig in plastiek en

_______________________________________ -suur word gebruik om koeldranke te geur.

7. ‘n ________________________ word gebruik om die suurheid of alkaliniteit van ‘n stof te bepaal.

Assessering

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

Assesseringstandaard 2.1: Dit is duidelik wanneer die leerder betekenisvolle inligting onthou: onthou, ten minste, definisies en komplekse feite.

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Definition of a lens

Lenses

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.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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