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GCSE Science and Maths revision

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    GCSE Science and Maths revision (OP)




    i thought i'd make this thread as i'm hoping that it would help each and every GCSE student that is a member of this forum (and possibly even people who aren't members of this forum).

    here, you can post anything that you've learnt today...bearing in min that this is a science and maths thread ONLY...i dont want to see posts regarding the climate or the nazis. this can aso be regarded as a thread where you can ask questions that you do not know the answer to or even quiz each other.

    but...as quite a lot of threads, this thread requires you to sign a set of rules.
    • no googling the answer, copying and pasting...feel free to research the topic, make notes...and then come back to answer...that is once you know that you have learnt the topic well.
    • no off-topic posting (duh!)
    • if you are a non GCSE student willing to help us poor enslaved students, feel free to do so.
    • you can only post an answer to a question if you are a GCSE student...but anyone (even if you are not a GCSE student) can ask GCSE science or maths related questions.
    *hmm...i think there were more rules...but i've forgotten them...so that's it for now*

    this thread can also be used as an excuse as to why you are being online when you are supposed to be revising for your exams...but if the excuse doesn't work, i am not to blame...*i know, i never was a good influence on kids*

    first question (as today, i didnt learn anything in school cause i wasnt bothered)...

    1. What are the three different types of rocks? Examples for each of the types.
    2. Two types of igneous rocks and one example for each type.

    GCSE Science and Maths revision



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    Re: GCSE Science and Maths revision

    Report bad ads?

    aerobic- release of energy from the breakdown of glucose
    anaerobic- release of a little bit of energy very quickly inside the cells when oxygen is not available
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    Re: GCSE Science and Maths revision

    salamualikum.
    well done dude, now you may ask a question
    ma'assalama
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    Re: GCSE Science and Maths revision

    salam alaikum every1 i jus wanna say that i am new 2 this service n i wanna ask is there sum sort of website specially made for GCSE science coz i am takin ma examz in june n need 2 start revisin specially in chemistry ma salama every1 fi aman allah
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    Re: GCSE Science and Maths revision

    Correct, again.

    Next question: Why is the human circulatory system termed as a 'double circulatory system'?
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by hibah786 View Post
    salam alaikum every1 i jus wanna say that i am new 2 this service n i wanna ask is there sum sort of website specially made for GCSE science coz i am takin ma examz in june n need 2 start revisin specially in chemistry ma salama every1 fi aman allah
    Try: www.bbc.co.uk/bitesize

    Alternatively, depending on your specific course you can get some truely excellent revision guides to assist you in your revision.
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    Re: GCSE Science and Maths revision

    salamualikum.
    to the ''new'' sis who wnats help go to www.bytesize.com sumet lyk at

    && am sure your school sell revision guides get the ''modular'' ones aright
    ma'assalama
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by strider View Post
    Correct, again.

    Next question: Why is the human circulatory system termed as a 'double circulatory system'?
    because there is the systematic circulation and the pulmonary circulation

    right ...sytematic is the circualtion that goes heart>artery/aorta>capilaries>Vein/Venacava>heart

    pulmonary circulation: pulmonary artery>lungs>pulmonary vein>heart

    :confused:

    GCSE Science and Maths revision


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    Re: GCSE Science and Maths revision

    Salam
    It's that time again this year. How quickly it has come. May I take this opportunity to wish all our GCSE students the best of luck.
    Wassalam
    GCSE Science and Maths revision

    O Allah, Lord of Jibreel, Mika'eel and Israfeel. Creator of the Heavens and Earth. It is You who commands on the worshippers according to what You have decided. Guide us to the truth by your mercy. Surely. You guide whom You will to the Straight Path.
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by +*Rooh*+ View Post
    kittygyal is not a student, she's an english teacher.

    You gotta be kidding right? English Teacher
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by seeker_of_ilm View Post
    You gotta be kidding right? English Teacher
    Behave yourself!
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    Re: GCSE Science and Maths revision

    Here's a chemistry question:

    whats the haber process?
    What are the optimum conditions for it?
    And what is the word equation for it?
    nitrogen + hydrogen -----> Ammonia
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by +*Rooh*+ View Post
    because there is the systematic circulation and the pulmonary circulation

    right ...sytematic is the circualtion that goes heart>artery/aorta>capilaries>Vein/Venacava>heart

    pulmonary circulation: pulmonary artery>lungs>pulmonary vein>heart

    :confused:

    I was looking for a rather simplified answer along the lines of 'blood enters the heart twice over per complete circuit' but
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by aadil77 View Post
    Here's a chemistry question:

    whats the haber process?
    What are the optimum conditions for it?
    And what is the word equation for it?
    nitrogen + hydrogen -----> Ammonia
    1. haber process is used to make ammonia from hydrogen and nitrogen

    2. 250 atmospheric pressure and 450-500C temperature

    3. hydrogen + nitrogen (reversible reaction sign thingamajig) ammonia + heat.

    next question:

    when electrolysing bauxite (aluminium ore), what is used to decrease its melting point?

    GCSE Science and Maths revision


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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by mizan_aliashraf View Post
    Salam
    It's that time again this year. How quickly it has come. May I take this opportunity to wish all our GCSE students the best of luck.
    Wassalam

    thankyou...insh'allah we will all pass with our brothers and sister's du'as
    GCSE Science and Maths revision

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    Re: GCSE Science and Maths revision

    All odd numbers add up to be even and all even numbers add up to be even as well.
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by E'jaazi View Post
    All odd numbers add up to be even and all even numbers add up to be even as well.


    Hope this formula list helps ,

    attach_file Attached Images
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    Re: GCSE Science and Maths revision

    format_quote Originally Posted by bint abdulhamid View Post
    saddows is dat all u guyz think bout? REVISING!!!!!!!!!!!!!!!!!!!!!!!!!!11
    well, its either revising, getting the grades and being successful, or not revising and getting U's and living the rest of our lives in misery...which would you choose?
    GCSE Science and Maths revision

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    Cool Re: GCSE Science and Maths revision

    format_quote Originally Posted by Maarya View Post
    well, its either revising, getting the grades and being successful, or not revising and getting U's and living the rest of our lives in misery...which would you choose?
    huh sum ppl go 4 da din instead of dunya
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    Re: GCSE Science and Maths revision

    the aluminium is dissolved in cryolite.

    Next question:

    why is power transmitted at high voltages through power lines?
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    Re: GCSE Science and Maths revision

    Salams

    ^Is it because of the large amount of power involved^
    GCSE Science and Maths revision

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