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Natural sciences

The earth and beyond

Properties and uses of materials

Educator section


Assignment 1 (group work):

Metals Used to make knives, forks, pots, pans, and ornaments. (There can be many other examples)
Fibres Curtains, mats, clothes are made from fibres. (There can be many other examples)
Plastic Plastic bowls, combs, brushes, etc. (There can be many other examples)
Glass Window panes, drinking glasses, wine glasses, ashtrays etc. (There can be many other examples)
Wood Furniture, tables, ornaments etc. (There can be many other examples)

Leaner section


Activity: to identify materials [lo 1.1, lo 2.2]

You already know that everything on earth consists of matter, (plants, animals, and non-living things) from a small speck of dust to a large planet.

A pane of glass in a window looks different from a drinking glass, but both are made from the same material, glass. Some substances may look similar and have the same colour but might differ in smell, taste, hardness, texture and elasticity. These are called the properties of materials and are used to describe the materials.


  • Work in groups. Look in a newspaper or magazine for a picture that shows different materials.
  • Indicate the various kinds of materials that are shown in the picture and say what they are used for.
Type of Material Uses
Fibres ______________________________________________
Plastic ____________________________________________________________________________________________
Glass ____________________________________________________________________________________________
Wood ____________________________________________________________________________________________


Learning Outcome 1: Learners respond confidently to their desire to learn about natural phenomena; they investigate relationships and solve problems within the context of science, technology and the environment.

Assessment Standard 1.1: We know this when the learner plans investigations: helps to clarify focus questions for investigation and describes the kind of information which would be needed to answer the question.

Learning Outcome 2: Learners know, interpret and apply scientific, technological and environmental knowledge.

Assessment Standard 2.2: We know this when the learner categorises information: categorises objects and organisms by two variables.

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natural sciences grade 6. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11079/1.1
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