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EnergyEnergySourcesSources

Proceed…

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iintroductionntroduction

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ssection Aection A

ssection Bection B

ssection Cection C


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• iintroductionntroduction

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• ssection Cection C

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Objectives:

Students should be able to:

• Compare the pros and cons of using 4 types of energy sources (solar,

nuclear, hydroelectric, biomass)

• List 5 ways of saving energy

Target Group: Secondary 1 (Express)

Duration/ Mode: 50 minutes / pair-work

Instructions: Click on the text in the left navigation bar to move from one

section to another


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•section A Scenario 2051 A.D.

•section B S.O.S.

•section C Tasks



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The year is 2051 A.D.

A crisis has hit the entire world...

The earth ran out of natural gas, crude oil and coal...

NO MORE FOSSIL FUELS ! ! !


Baby Kevin’s face spells disaster!


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PANIC!!!

HOMES

STREETS

SCHOOLSWORKPLACE

….Nothing seems to function and people are stranded...

(click on the different locations to see what will happen)


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At homes, food spoil in refrigerators. TVs, VCD players, washing machines and cookers become useless.

PANIC!!!

STREETS

SCHOOLSWORKPLACE


(click on the different locations to see what will happen)


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In schools,

classrooms are dark

and stuffy because the

lights and fans don't

work. Teachers cannot

use OHPs or

computers...

PANIC!!!

HOMES

STREETS

WORKPLACE


(click on the differents location to see what will happen)


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On the empty streets, traffic lights, street lamps are

out of order. Airports and MRT stations are closed.

Supplies cannot reach Singapore...

PANIC!!!

HOMES

SCHOOLSWORKPLACE




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In factories and

offices, machines,

computer systems,

lifts, central air-

conditioning and

automated doors shut

down...

PANIC!!!

HOMES

STREETS

SCHOOLS




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Luckily, Baby Kevin remembers he can still use his charged lap-

top to email his friends overseas for help...



(Click on the picture to see his email)

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(Click on the names of Kevin's friends to see their replies)


George Bolshevik ShatshwaXiaoping


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Hey Baby Kevin,

Relax! It's not the end of the world! After all, the sun will still

shine, and you can always count on it for solar energy!

You can tap solar energy using photovoltaic cells (in solar-

powered calculators) or using the solar-thermal method like what we do in

the Mojave Desert. We have over 1800 mirrors arranged in 100 acres of

land to reflect sunlight onto the top of a tower.

I heard Singapore’s sunny just like

California. Can’t you use solar energy?

Look on the BRIGHT side,

George, USA


George Bolshevik ShatshwaXiaoping


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Dear Baby Kevin,

Singapore has great demand for

energy indeed! Have you considered using nuclear energy? The amount of

energy generated will be tremendous and readily available. Furthermore, a

nuclear plant doesn't take up much space. Aren't these just what Singapore

needs?

However many people are terribly against it because of the many

problems it entails, amongst them, nuclear waste disposal and the possibility

of accidents. Well, what do you think?

Do think thrice,

Bolshevik, Russia


George Bolshevik ShatshwaXiaopingnextnextpagepage


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Dear Baby Kevin,

I’m sorry to hear of the crisis! Here in Chongqing, the huge dam at

the Yangtze River provides us with hydroelectric energy. Hydroelectric

energy is clean, steady and cheap (at least after the dam was built!).

My grandfather said the dam was also built to curb the disastrous

river floods that killed many people. However, I was told many historical sites,

natural habitats and village settlements had to be flooded to create the

reservoir behind the dam. But do you think Singapore can generate

hydroelectric energy?

Let nature take its course,

Xiaoping, China




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Dear Baby Kevin,

In Africa, biomass energy has always been a way of life. Biomass

energy is stored in all plants, animals and organic matter. There are many

ways of generating biomass energy. A long time ago, it just meant burning

wood or animal dung. Now, you can grow energy crops like sugar cane and

oil palms for fuel. Also, decomposing matter like rubbish emit combustible gas

that we can use. There're lots of possibilities for biomass energy. Do you think

Singapore can use any of them?

NATURALLY yours,

Shatshwa, South Africa




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Sigh! It’s really too late for Baby Kevin to do anything, isn't it?

Luckily, we are still in 2001 A.D. and there's still time. However we do need to think seriously about developing alternative sources of energy don’t we?

What alternative sources of energy can Singapore consider for her future?





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Energy

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1. Print out this worksheet

2. After reading the recommendations from Baby Kevin’s friends, can

you analyze the pros and cons of each energy source based on the

criteria in the worksheet?

3. Log on to these websites to help you:

•http://www.energy.ca.gov/education/story//story-html/story.html#table

•http://tqjunior.thinkquest.org/6064/cgi-bin/sources.cgi

•http://www.cnn.com/SPECIALS/1999/china.50/asian.superpower/three.gorges/

•http://www.eva.wsr.ac.at/(en)/projekte/ren-in-a05.htm

(Please turn to the next page for task 2)



Task 1:Task 1:-------------------->

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• ccontentsontents Now that you’ve realized how precious energy is, can you think of

five ways to help save energy?

Task 2:Task 2:

Print out this worksheet ---------->

That’s all, folks! Don’t forget to turn off the lights when you leave! ;-)

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creditscredits





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• Created by : Ang Lay Eng and Kelly Cho Ling Ling

• References: http://www.energy.ca.gov/education/story//story-html/story.html#tablehttp://tqjunior.thinkquest.org/6064/cgi-bin/sources.cgihttp://www.cnn.com/SPECIALS/1999/china.50/asian.superpower/three.gorges/http://www.eva.wsr.ac.at/(en)/projekte/ren-in-a05.htm

• Images taken from:

http://www.nrel.gov/data/pix/searchpix.cgi

http://www.washingtonpost.com/wp-srv/inatl/longterm/yangtze/stories/facts.htm

http://www.couponsfreecoupons.com/kidtoys/littletikesbabylaptop.htm

http://www.brainpop.com

http://www.energy.ca.gov/education/AFVs/index.html

http://www.ase.org.uk/cgi-bin/imageFolio/

http://library.thinkquest.org/C001667/


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