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Social sciences


Grade 8

Changing ideas and technology:

The first world war

Module 12

Submarines and trench warfare of the first world war

To discuss submarines as a weapon of the first world war

[lo 3.1, 3.2, 3.3, 3.4, 3.7]


Initially America (the USA) distanced themselves from the war. The well-known isolationist policy of the Americans prohibited their involvement in European matters. They would only go so far as to provide the fighting Allies with provisions and war materials.

Britain set up a sea blockade to prevent war supplies from reaching her enemies. British supply ships ferried vital war supplies across the Atlantic ocean between Europe and the USA. Germany used its weapons technology to turn the submarine into a weapon of destruction. The submarines sunk neutral as well as enemy ships. The gross mass of supply ships and their cargo sunk in the month of April 1917 alone, totaled a million tons. This meant that Britain’s food supply was practically gone. Britian was dependent upon the supplies from its colonies and these were on the bottom of the sea.

The Germans received a warning concerning their “unlimited submarine warfare”, but viewed it as effective. Because of the strong feelings of the citizens, President Woodrow Wilson of America was forced to declare war and join the Allies. It was this involvement of America, during a period when the Allies were being defeated, that swung the course of the war in the favour of the Allies.


[lo 3.1, 3.2, 3.3, 3.4, 3.7]

  1. Explain in a full sentence what it means when something can be described

as unlimited? /2/

  1. Explain in a full sentence what is meant by effective . /2/

3. Do you think that the words in bold “unlimited submarine warfare” were written by a German? Motivate your answer./3/

4. Why did the two groups interpret submarine warfare differently? /3/


Statement: Germany used its weapon technology to turn the submarine into a very successful weapon of destruction.

5.1 Is this statement a fact or an opinion? /1/

5.2 When I take from the statement the two words ______________ /1/

and ____________ then only the fact / opinion _______________/1/

remains. /1/

5.3 Rewrite the entire statement with your own words added.

Germany used its weapons technology to turn the submarine into a very successful weapon of destruction. /1/

/ 15 /

Assignment: the research project

  • You have now received information on different weapons and their use. Choose your own topic from the theme: TECHNOLOGICAL DEVELOPMENT

Learners interested in weapons can choose to do research on submarines.

Reread the instructions for a good project discussed in Module 1. In Reading 3 the d readnought is mentioned. Learners interested in ships can do their research on the technological development of weapons on ships and types of war ships.

If you are more interested in computer technology, you should research the origins of computers. You must be able to show the development of computers.

Questions & Answers

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.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, History grade 8. OpenStax CNX. Sep 12, 2009 Download for free at http://cnx.org/content/col11044/1.1
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