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Natuurwetenskappe

Lewe en lewenswyse

Opvoeders afdeling

Memorandum

  • Die tuinslak
  • Seekat en mossel
  • Spiervoet
  • twee paar voelers en twee oë
  • Die slak beweeg met golfbewegings in die spiervoet.
  • Die mond is T-vormig, aan die onderkant van die kop.

Opdragte:

1. Die plante na-aan die grondoppervlak sou waarskynlik welig groei. Die diere wat van slakke leef, soos honderdpote, voëls en muise, sou moontlik ander weivelde soek.

2.

Erdwurm Ronde langwerpige liggaam maak dit moontlik om gate in grond te grawe, plantreste in te dra en saam met grond te eet Leef in vogtige grond om vel vogtig te hou Stelsel van buisies waarmee die hoeveelheid water wat opgeneem en afgegee word, beheer word
Sprinkaan Kan beweeg om voedsel te soek. Bytende monddele om plantmateriaal fyn te sny Buisies vertak in liggaam, voorsien 'n vogtige gaswis-selingsoppervlak Uitwendige skelet verhoed waterverlies, kry vog saam met plantmateriaal in
Spinnekop ens. Leerders maak bloot 'n opsomming van inligting in teks.
Krap
Slak

3. Navorsingsopdrag: assesseer in terme van die raamwerk wat in die module verskaf word.

Leerder afdeling

Inhoud

Aktiwiteit: om die tuinslak te ondersoek en die aanpassing van enkele invertebrate ten opsigte van oorlewing te vergelyk [lu 1.1, lu 1.2, lu 1.3, lu 2.3, lu 2.4]

Die tuinslak

Die slak behoort tot die groep weekdiere of Mollusca . Kan jy nog onthou watter ander diere aan hierdie groep behoort?

Die _____________________________ en ________________________________

Jy sal dit nie moeilik vind om ‘n tuinslak in die hande te kry nie. Kyk na sy uitwendige bou en probeer om die volgende vrae te beantwoord:

Die grootste deel van die liggaam bestaan uit ‘n ______________________________ -voet.

Aan die kop is twee ___________________________________ en twee ____________________________________________________________________

Sit die slak op ‘n glasplaat neer en wanneer hy begin beweeg, kyk van onder af deur die glas en beskryf wat jy sien (hoe hy beweeg).

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

Kan jy sy mond sien? Beskryf. ___________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_______________________________________________________________________________________________________________________________________________________________________________________________________________

Lig die slak op en probeer om langs die liggaam in die skulp in te kyk. Kan jy ‘n opening sien? Dit is die asemhalingsopening.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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