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Natuurwetenskappe

Graad 5

Lewe en lewenswyse

Module 16

Visse

Aktiwiteit:

Om eie kennis van visse uit te brei

[lu 1.2]

Visse is diere wat in die water lewe.

Visse is koudbloedig, haal deur kieue asem en is met skubbe bedek.

Eiers word meestal in groepe gelê.

Reukorgaan is goed ontwikkel.

Systreep wat sensitief is vir aanraking en ander prikkels soos golwe in die water.

Interessante feite:

Die silwerige kleur van visse kom van spesiale selle.

‘n Galjoen is donker van kleur as dit tussen rotse swem, maar ligter wanneer dit oor sand swem.

Slaap visse? Ja, maar hulle maak gewoonlik nie hul oë toe nie en rus baie keer op die bodem van die see of dam.

Opdrag:

  • Beskryf hoe ‘n vis aangepas is om kos te kan bekom.
  • Watter sintuie is by die vis goed ontwikkel?

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

Opdrag:

  1. Kan swem, kan goed sien.

2. Oë, reuk, gevoel.

Questions & Answers

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what's Thermochemistry
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the study of the heat energy which is associated with chemical reactions
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Read Chapter 6, section 5
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Read Chapter 6, section 5
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Atomic radius is the radius of the atom and is also called the orbital radius
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atomic radius is the distance between the nucleus of an atom and its valence shell
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It has no oxygen then
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definition of the periodic table
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Source:  OpenStax, Natuurwetenskappe graad 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10980/1.2
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