Chemistry 2012 A level MCQ answers and paper discussion Old syllabus and new syllabus

Old syllabus Mcq

1. The number of elements in the first four periods of the peiodic table is 36

 in first period 2

    second       8

    third           8

    fourth         18 

 

 add these values and you will get the answer       

2.           

New syllabus mcwq

1.

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2012 Sri Lankan A Level Biology MCQ discussion

I dont know exactly the question number but there was a question saying "which od the following diseases are inheritable?" and also there was an answer "aids"
.
Now many clever students wrote that aids is also a inherited disease.Actually inheritance has got to do with genes and dna .Aids is not transferred through the genes of a mother to child,but by blood tranfusion happening in the placents during birh.

Why are cloudy nights warmer than clear, star-lit nights?

the clouds reflects back the heat to the surface of the earth , so avarage heat lost from suface of the earth is minimum ,so we feel warmer.

heat thermometer

2.Alcohol and  are used as thermometric liquids.
a) give reasons why alcohol rather than mercury,is used to measure a temperature of -60 degree celcius.

At -60 degree celcius  mercury solidifies and becomes a solid,so it cant be used to measure the temperature inside a thermometer.


b)mercury rather than alcohol is used to measure a temoerature of 200degree celcius

At  200degree celcius alcohol vapourizes as a gas and so  cant be used to measure the temperature inside a thermometer , but mercury remains as a liquid till  350 degree celcius.

Considering foriegn advanced level exam over sri lankan a level exam?

Cambridge Gce A Levels

Many people all over the world spent money and study for their Cambridge a level qualification , instead of doing the free government hold local examination in their respective countries, such as in  Sri lanka. Their reasons and aspirations may be to enter into one of the foreign university and enroll in a undergraduate program.

Foreign university education like in the university of Cambridge and Oxford in England , there the tuition fee is sky high , like about 30000 sterling pound per year to do Course in Medicine or Engineering .
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Some other students work part time jobs to supplement their income and hence are able to support their livehood in their country of higher studies.

Most students leave their home country with the intention of not returning after completion of their studies but instead work there and earn money.
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Unit 7 Biology Sri Lankan A Level

The unit 7 is all about coordination and homeostasis.

I will  give you some definitions will will  be very useful in your exams:

coordination: when the conditions of the external or internal environment of an organism changes and a specific response is made by the organism, and the a=organism gets adapted ,thus maintaing constant internal conditions resulting in the survival of the organism

white matter: collection of axon of neurone
grey matter: collection of cell  bodies of neurones

Remember this way: u got a huge collection of rats with huge tails.The collection of the rats id the grey mater and the collection of the tail of rat is the white matter.

To download the teachers guide for a level biology  syllabus and teachers guide in sinhala or tamil or english click here

*there will be an ad ,click ,skip this ad and go to the website to download this syllanus or teachers giude.

Sri lankan a level bio stream 2012 2013 2014

a/l physics tamil notes pdf

There are actually no pdfs in tamilm of physics notes available,on the whole internet ,but i can provide them to you as per the extend of the syllabus ,if you tell me the area or section which you are needing, eg optics(olli), heat(veppam),mechanics.

send the request to veeradinesh85@gmail.com or leave a comment on this blog and I will give you the link after uploading the pdf.