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Natuurwetenskappe

Materie, meting en reaksies

Materie en meting

Opvoeder afdeling

Memorandum

TOETS JOU KENNIS

1. partikels (klein deeltjies)

2. vaste stof; vloeistof; gas

3. atome

4. molekules

5. atoom

6. twee of meer atome

7. verbinding; elemente; kwik; suurstof

8. suurstof

9. verbindings

10. opgeneem

11. suurstof

12. ruimte; massa

13. 1 cm3

14. minder

Leerder afdeling

Inhoud

Aktiwiteit: toets jou kennis [luo 2.1, lu 2.4]

Vul die ontbrekende woord/e in:

1. Alle materie op aarde is uit ____________________________________ gemaak.

2. Materie kan in drie vorms voorkom, nl ________________________________,

________________________________ en ______________________________

3. Alle materie bestaan uit klein deeltjies wat ___________________ genoem word.

4. Hierdie deeltjies verbind om ___________________________________ te vorm.

5. ‘n Element is materie wat slegs uit een soort ______________________ bestaan.

6. ‘n Verbinding bestaan uit ____________________________________________

7. Die verhitting van kwikoksied het bewys dat dit ‘n ________________ is wat uit

twee _____________________, nl. _______________________________ en

__________________________________________________________ bestaan.

8. ‘n Gloeiende splinter slaan aan die brand as dit in _________________________

gesteek word.

9. Elemente is die boustene van _________________________________________

10. Tydens die ontbinding van verbindings in hulle samestellende elemente word

warmte __________________________________________________________

11. Watter van die volgende is ‘n element: lug; water; ysteroksied of suurstof?

_________________________________________________________________

12. Alle materie beslaan _____________________ en het ____________________

13. ‘n Voorwerp wat in water sink, sal ‘n digtheid hê van meer as _______________

14. Room dryf op melk omdat dit __________________________ dig is as melk.

(20)

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.).

Assesseringstandaard 2.4: Dit is duidelik wanneer die leerder kennis toepas: pas konseptuele kennis toe deur ‘n begrip wat onderrig is met ‘n variasie van ‘n soortgelyke situasie in verband te bring.

Questions & Answers

what is phylogeny
Odigie Reply
evolutionary history and relationship of an organism or group of organisms
AI-Robot
ok
Deng
what is biology
Hajah Reply
the study of living organisms and their interactions with one another and their environments
AI-Robot
what is biology
Victoria Reply
HOW CAN MAN ORGAN FUNCTION
Alfred Reply
the diagram of the digestive system
Assiatu Reply
allimentary cannel
Ogenrwot
How does twins formed
William Reply
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
what is genetics
Josephine Reply
Genetics is the study of heredity
Misack
how does twins formed?
Misack
What is manual
Hassan Reply
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
Joseph Reply
what is biology
Yousuf Reply
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
what is the blood cells
Shaker Reply
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
Abdullahi Reply
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
What is classification
ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
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Source:  OpenStax, Natuurwetenskappe graad 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11078/1.1
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