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Natuurwetenskappe

Graad 4

Lewe en lewenswyse

Module 20

Persoonlike watergebruik

Aktiwiteit:

Om persoonlike watergebruik te beskryf

[lu 1.2]

Opdrag:

Skryf elke aktiwiteit neer waarin jy water gebruik vir een hele dag. Vergelyk dit met jou klasmaats s’n. Vra jou ouers om vir jou te wys hoe die watermeter by julle huis werk.

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   ondersoek beplan;

1.2   ondersoek uitvoer en data versamel;

1.3       data evalueer en bevindings kommunikeer.

 

Memorandum

  • Ons kan onmiddellik in ‘n bad of stort klim en begin was, ons hoef nie water aan te dra nie.
  • Ons hoef nie water aan te dra vir skottelgoed nie.
  • Water in die huis bespaar tyd en energie.
  • Ons wasgoed kan maklik gewas word, ons hande hoef nie seer te raak van al die vryf en die chemikalieë in die waspoeiers nie.
  • Alles bly skoon en sindelik.
  • Ons kan net die toilet spoel nadat ons dit gebruik het. Ons hoef nie van ‘n emmer gebruik te maak nie, alles bly dus sindelik en kiemvry.
  • Ons kan net die kraan oopdraai om groentesoorte af te spoel om kos te maak.
  • Ons kan dadelik water drink as ons dors is.
  • Ons kan troeteldiere goed versorg met vars water.

Questions & Answers

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Ewa Reply
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Moses
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Fredrick Reply
the transfer of energy by a force that causes an object to be displaced; the product of the component of the force in the direction of the displacement and the magnitude of the displacement
AI-Robot
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Is the ship moving at a constant velocity?
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The full note of modern physics
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introduction to applications of nuclear physics
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zephaniah
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aluet
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Isaac
A wave is described by the function D(x,t)=(1.6cm) sin[(1.2cm^-1(x+6.8cm/st] what are:a.Amplitude b. wavelength c. wave number d. frequency e. period f. velocity of speed.
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Somto Reply
A body is projected upward at an angle 45° 18minutes with the horizontal with an initial speed of 40km per second. In hoe many seconds will the body reach the ground then how far from the point of projection will it strike. At what angle will the horizontal will strike
Gufraan Reply
Suppose hydrogen and oxygen are diffusing through air. A small amount of each is released simultaneously. How much time passes before the hydrogen is 1.00 s ahead of the oxygen? Such differences in arrival times are used as an analytical tool in gas chromatography.
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Samuel
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Nangun Reply
the science concerned with describing the interactions of energy, matter, space, and time; it is especially interested in what fundamental mechanisms underlie every phenomenon
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nuclei having the same Z and different N s
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Source:  OpenStax, Natuurwetenskappe graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11097/1.1
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