For the benefit of your academic/In-lieu of exams

It's good to joke around and relax your nerves by laughing.
But after all the fun, it's down to business.

The only teacher that gained access here is Mr Daniel Tan.

Since we don't have the pillar support from the other subject teachers online, I thought that it would be great if we could rely on each other and answer each other's questions.

The person who asks clarifies his/her doubt.
The person who answers is sort of revising again. (温故知新)
Also, the others who view this thread may also gain invaluable knowledge from the topics.

Ask away!
Those who know the answer or are strong in the subject please reply.

Thanks.

(Anyway state the subject before you shoot)

Alright let me start the ball rolling

HISTORY:
Can any of you reading this chip in to help? Help me check if Mrs Choong have returned us the Maria Hertogh reliability practice that we did as pairwork in class. If I'm not wrong, Mrs Goh was also present on that day we did the practice

There's a Chapter 6 Judgement SEQ practice that we had to do after the groups presented the mindmap on what effects the Jap Occu. had after the war. The one on political,social and economic?

Did you all get back this 2? Both are done on foolscap paper.

BIOLOGY:What happens to a potato when put in DILUTE sugar solution?

Nope, i gt none of the history worksheets. As for bio, the potato will become larger

Thanks AZD!

BIOLOGY:

What's the difference between saturated and concentrated?

Satuated means the maximum amount of solute dissolved in a particular amount of solvent in a particular temperature (means no more solute can dissolve liao) while concentrated is a lot of solute dissolved in a solvent but still gt space for more solute

Btw, is informal letter tested in situational writing? Mdm abey did not say

the mindmap is wif me. as for the foolscap thing i tihnk we gt it back

--------------SUBLIMATION-------------->
<---SOLIDIFICATION--- <---CONDENSATION-
------ /FREEZING

SOLID ----------- LIQUID ------------ GAS


-----------MELTING--> ---EVAPORATION-->
<-----------DEPOSITION------------------

HAHA.For fun.

@ pengwai:
Both?

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CHEMISTRY:
What's the difference between combustion and oxidation?

(EVERY TIME I GO GOOGLE I LAG, LIKE MY COMPUTER HAS SOME PREJUDICE AGAINST SEARCH ENGINES :X)

Someone answer my chemy question XD Aww volunteer to be my mobile googler lah haha Lol joking!

Combustion is a chemical name for burning and this process belongs to a big group called oxidation.

Fyi oxidations also can mean lost of electrons, not necessarily have something to do with oxygen

Huh? Then cut apple turn brown because of oxidation, isn't it? :X

But generally, the oxidation we learn in textbook is involved with oxygen?


AND AND AND
Can anyone write out the format of history exam tomorrow. I copied down but I wana double-check. My handbook is in a mess! Thanks a bunch

Oxidation is confusing indeed. You can try to google it . Btw hist. exams:Section A)SBQ (Inference,Comparison,Reliability,Testing Assertion)
Section B)Choose 1 out of 2 questions. The 2 questions are Judgement and Causal SEQ

ok thanks for the info!

AZD wrote:Oxidation is confusing indeed. You can try to google it . Btw hist. exams:Section A)SBQ (Inference,Comparison,Reliability,Testing Assertion)
Section B)Choose 1 out of 2 questions. The 2 questions are Judgement and Causal SEQ

Actually, I thought that it was supposed to be:
Section B)1 compulsory qn, then choose 1 out of 2 qns. Can be Judgement or Causal SEQ.

Oh ya, btw, wad is the diff. btwn Causal and Judgement SEQ?

it doesnt matter...just study for both causal and judgment...
btw causal is like how far you agree with the source and judgment is like how far do you agree AND disagree with the source.

am i right???

tzuning wrote:Combustion is a chemical name for burning and this process belongs to a big group called oxidation.

oxidation is when and oxygen is used in the chemical formula

H2+0=H20 oxidation

combustion is when heat uses oxygen.

Just rmb that the combination process is part of the oxidation process. So H2+0=H20 is both combination and oxidation

fyi wad i think is oxidation can occur at any temperature like iron+oxygen= iron oxide(rust).
combustion only occurs when its burning at high temps.
btw oxidation is also the loss of electrons. it can happen with or without heat.