Translate

Wednesday, August 22, 2012

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.

After A level , Need make money oline from home?


Hello, Do you want to learn to make money online?.........

Today many people who are new to the internet money making section seek
 online guidance as to how they can start they online revenue-getting.
Imaging you are sitting at home infront of your computer for one or two hours a

 day and get paid about $1000.00 for doing nothing but only one hour online
website editting. Yes this can become true even in your real  life with a little
efford on your side.
 I have a site at  http://www.bigonlinemoney.weebly.com,please go to my website
 and read more to undersatnd online bussiness. Click here to go to my website.
First of all you will be needing a webite to make money online.Yes of course it is
also possible to make money online without a website these days by doing
 things like freelance work and data entry which I discuss at another page of
 my website.But if you have a webite, you will find yourself on the luckty side .
If you don't have a website never mind , you can buy a domain and host online
for less than $5 a month.If you don't have the money you can still create a free
 website and host at sites like www.weebly.com

To keep in touch with me please follow me in twitter and I will follow you. 
Click here to Follow me in Twitter


Tuesday, August 7, 2012

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.

Sunday, August 5, 2012

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.

Friday, August 3, 2012

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.