<![CDATA[IP Science - Q&amp;A]]>Hi,


1)Anyone has any idea where to get the syllabus for science IP programme?

2)Just looking thru the textbooks which I just bought for ds, I realise the things they cover sometime didn’t quite match what they learn at P6 (PSLE).

Eg

Biology - when they classify ‘living organisms’ into one with many cells, like anthropods, it was classified as either hard exoskeleton or a few other types. For the hard exoskeleton, it’s mentioned that insects like having characteristics such as follows:

a) 3 body segments - head, thorax, abdomen (ok, this is like what they learn in psle)
b) 3 pairs of legs (ok, like psle)
c) antennae (ok they learn that at psle)
d) 2 pairs of wings (??? - what they learn at psle is not necessarily so - like ants have no wings)

3) Also, textbook also list 'characteristics of living things such as
R - respire (similar to need air learned in primary sch)
I - Show irritability (= respond to changes in Primary sch)
N - Nourish themselves (= need food, water in primary sch)
G - Grow (exactly what is learnt in primary sch - they grow)
E - Excrete (not mentioned in primary sch under characteristics)
R - reproduce (exactly what is learnt in primary sch)

So, it’s not quite the same.

]]>https://forum.kiasuparents.com/topic/29987/ip-science-q-amp-aRSS for NodeMon, 20 Apr 2026 12:05:22 GMTSun, 25 Dec 2011 13:09:11 GMT60<![CDATA[Reply to IP Science - Q&amp;A on Sun, 02 Dec 2018 12:41:28 GMT]]>

Verysuperkiasu:
Belle2011:

May I ask what text-books are you using and which sec school?


Complete Biology for Cambridge IGCSE 2nd edition (Ron Pickering).
DS is starting school in RI (2012).

Hi

Anyone knows if RI still using this book (Which edition)?

]]>https://forum.kiasuparents.com/post/1887754https://forum.kiasuparents.com/post/1887754Sun, 02 Dec 2018 12:41:28 GMT<![CDATA[Reply to IP Science - Q&amp;A on Tue, 24 Apr 2012 05:32:52 GMT]]>

mum_sugoku:
BTW you can find the details under O-level chem's Redox reaction.

thanx...

]]>https://forum.kiasuparents.com/post/686090https://forum.kiasuparents.com/post/686090Tue, 24 Apr 2012 05:32:52 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sun, 08 Jan 2012 13:06:44 GMT]]>Er… oxidation no. is not nec equal to valency. For ionic compound, it is, but for covalent compound, the oxidation no. varies bec they can share electrons in many ways. But as twilight mentioned, O almost always has oxidation no. of -2 so we just calculate the oxidation no. based on that lor. Like in NO3-, bec the overall charge is -1 and O is -2 so N’s oxidation state must be +5 (since +5 -2x3 =-1)… BTW you can find the details under O-level chem’s Redox reaction.

]]>https://forum.kiasuparents.com/post/685294https://forum.kiasuparents.com/post/685294Sun, 08 Jan 2012 13:06:44 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sun, 08 Jan 2012 11:21:56 GMT]]>

mum_sugoku:
Verysuperkiasu:

Hi twilight -


Just wondering how come the method of derivation of valencies u mentioned does not work for some ionic compounds - like NO3, N is -3, O3 is -2(3) which is -6. When u add -3-6=-9??? But we know valency for NO3 is 1- right?

N's oxidation number becomes +5 when combined with O..

When u mention oxidation number, do u mean valency?

N has a valence electrons of 5 right? (electronic configuration is 2.5). So it needs another 3 more electrons to form 2.8 hence has a valency of -3

]]>https://forum.kiasuparents.com/post/685197https://forum.kiasuparents.com/post/685197Sun, 08 Jan 2012 11:21:56 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sun, 08 Jan 2012 00:58:15 GMT]]>

Verysuperkiasu:
Hi twilight -


Just wondering how come the method of derivation of valencies u mentioned does not work for some ionic compounds - like NO3, N is -3, O3 is -2(3) which is -6. When u add -3-6=-9??? But we know valency for NO3 is 1- right?
N's oxidation number becomes +5 when combined with O..

]]>https://forum.kiasuparents.com/post/684794https://forum.kiasuparents.com/post/684794Sun, 08 Jan 2012 00:58:15 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sat, 07 Jan 2012 15:33:49 GMT]]>Hi twilight -


Just wondering how come the method of derivation of valencies u mentioned does not work for some ionic compounds - like NO3, N is -3, O3 is -2(3) which is -6. When u add -3-6=-9??? But we know valency for NO3 is 1- right?

]]>https://forum.kiasuparents.com/post/684681https://forum.kiasuparents.com/post/684681Sat, 07 Jan 2012 15:33:49 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 13:09:31 GMT]]>

twilight:
I just finished O levels last year haha so now waiting for results. 🙏 That's why I'm free to post. 😄 DSAed to ACSI so I'll go there if my L1R5<20

I read in the news that 'O' levels results are coming out....
All the Best to you for your 'O's and I'm sure your results will be great!!!

:rahrah: :imcool: :rahrah: :boogie:

]]>https://forum.kiasuparents.com/post/682432https://forum.kiasuparents.com/post/682432Thu, 05 Jan 2012 13:09:31 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 12:41:34 GMT]]>I just finished O levels last year haha so now waiting for results. 🙏 That's why I'm free to post. 😄 DSAed to ACSI so I'll go there if my L1R5<20

]]>https://forum.kiasuparents.com/post/682387https://forum.kiasuparents.com/post/682387Thu, 05 Jan 2012 12:41:34 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 11:43:07 GMT]]>Whoa, twilight - you had me fooled too. I thought u were a parent. Like tisha said, your contributions are really valuable....please come on line to answer questions IF only u have the time. BTW, which sch are u from? Kaypoh lah 😉

]]>https://forum.kiasuparents.com/post/682321https://forum.kiasuparents.com/post/682321Thu, 05 Jan 2012 11:43:07 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 06:42:10 GMT]]>

Verysuperkiasu:
@Tisha - I told myself that also when ds finished psle - that I will be hands off academically. But I'm so used to studying with him leh, so much so that if I don't study with him, I feel guilty that I'm not doing my job helpin him academically. I only go through subjects I'm familiar with, or I can still remember. Like for lit, geography and history, I told him to read up on his own.


@jtoh - I also forget most of the things actually esp math (my weakest!) - only remember the title - differentiation and integration (or is that A math??). How to do I forgot. But I remember chemistry better because it used to be my fav subj. 🙂
:hi5: Same here, same here. But forcing myself to let go. Not easy I know. :hugs:

]]>https://forum.kiasuparents.com/post/681963https://forum.kiasuparents.com/post/681963Thu, 05 Jan 2012 06:42:10 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 06:37:43 GMT]]>

twilight:
I'm still currently studying 😛

😂 Sorry, I didn't know u were a student.
Your contributions r invaluable and will b useful for many sec students. Will ask DS to check in ksp when he needs any clarification. Thanks for being around inspite of ur busy schedule. Best wishes to you from aunty. God bless. 😄

]]>https://forum.kiasuparents.com/post/681958https://forum.kiasuparents.com/post/681958Thu, 05 Jan 2012 06:37:43 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 05:54:43 GMT]]>I'm still currently studying 😛

]]>https://forum.kiasuparents.com/post/681893https://forum.kiasuparents.com/post/681893Thu, 05 Jan 2012 05:54:43 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 03:47:26 GMT]]>@Tisha - I told myself that also when ds finished psle - that I will be hands off academically. But I'm so used to studying with him leh, so much so that if I don't study with him, I feel guilty that I'm not doing my job helpin him academically. I only go through subjects I'm familiar with, or I can still remember. Like for lit, geography and history, I told him to read up on his own.


@jtoh - I also forget most of the things actually esp math (my weakest!) - only remember the title - differentiation and integration (or is that A math??). How to do I forgot. But I remember chemistry better because it used to be my fav subj. 🙂

]]>https://forum.kiasuparents.com/post/681677https://forum.kiasuparents.com/post/681677Thu, 05 Jan 2012 03:47:26 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 03:47:26 GMT]]>@Tisha - I told myself that also when ds finished psle - that I will be hands off academically. But I'm so used to studying with him leh, so much so that if I don't study with him, I feel guilty that I'm not doing my job helpin him academically. I only go through subjects I'm familiar with, or I can still remember. Like for lit, geography and history, I told him to read up on his own.


@jtoh - I also forget most of the things actually esp math (my weakest!) - only remember the title - differentiation and integration (or is that A math??). How to do I forgot. But I remember chemistry better because it used to be my fav subj. 🙂

]]>https://forum.kiasuparents.com/post/681678https://forum.kiasuparents.com/post/681678Thu, 05 Jan 2012 03:47:26 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 03:41:29 GMT]]>

twilight:
Valency is essentially based on the transfer of electrons required to obtain a noble gas configuration, giving rise to ions.

-2 would mean gaining 2 electrons, causing the ion to have a -2 charge. The overall charge of the polyatomic ions is based upon the number of electrons transferred and the nett charge it has. For example, NaCl has +1 from Na and -1 from Cl, causing it to have a 0 nett charge and therefore it is a neutral compound and not an ion.
Totally agree with u....thanks! 😄

]]>https://forum.kiasuparents.com/post/681668https://forum.kiasuparents.com/post/681668Thu, 05 Jan 2012 03:41:29 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 02:56:16 GMT]]>I don’t think I can remember much from my secondary school days to be of any help. Furthermore the syllabus may have changed.

]]>https://forum.kiasuparents.com/post/681596https://forum.kiasuparents.com/post/681596Thu, 05 Jan 2012 02:56:16 GMT<![CDATA[Reply to IP Science - Q&amp;A on Thu, 05 Jan 2012 02:49:25 GMT]]>

twilight:
Verysuperkiasu:

Ds has a chemistry question.....


He said he knows how to get valency of simple ions - like potassium K has a valency of 1+ due to its electronic configuration of 2.8.1 hence need to get rid of 1 electron.

But he doesn't know how the valency of polyatomic ions like CO3 and NH3, etc are derived. In my sec sch days, I just memorized the valencies of these polyatomic ions. Now when my ds asks me, I don't know how to explain.

Anyone can help to explain?

O almost always has a valency of -2. C can be +4 or -4 but in this case, it is +4 because even in polyatomic ions there is almost always + and -. Therefore the charge of CO3 would be +4+3(-2)=-2
Similarly for NH4 (btw it's NH4. NH3 is a neutral molecule), H will be +1. -1 valency for H is usually for organic compounds. N will be +5 or -3. In this case it will be -3 due to it being H+. So charge of NH3 is -3+4(1)=+1

Wah, you guys so pro. Do you really remember all this from ur school days? I've happily forgotten everything le, and whats more don't wish to refresh either. From now on taking a back stage, rgd DS studies. Well, it a conscious effort from me, you see for PSLE it was me who planned his revision, researched on which assessment books to buy, marked his top sch exam papers, identified weak areas, gave him additional drills in weak areas, even learnt the various maths techniques etc etc. 😓 But I don't think I can sustain if I do all that for sec as well. :faint:
He is own his own from now on, need to depend on teachers and friends for clarification. Besides there is always internet.
Just curious, what abt other parents, how involved are u in ur sec school kid's studies, am I the odd one out? :oops:

]]>https://forum.kiasuparents.com/post/681585https://forum.kiasuparents.com/post/681585Thu, 05 Jan 2012 02:49:25 GMT<![CDATA[Reply to IP Science - Q&amp;A on Wed, 04 Jan 2012 15:53:30 GMT]]>Valency is essentially based on the transfer of electrons required to obtain a noble gas configuration, giving rise to ions.

-2 would mean gaining 2 electrons, causing the ion to have a -2 charge. The overall charge of the polyatomic ions is based upon the number of electrons transferred and the nett charge it has. For example, NaCl has +1 from Na and -1 from Cl, causing it to have a 0 nett charge and therefore it is a neutral compound and not an ion.

]]>https://forum.kiasuparents.com/post/681166https://forum.kiasuparents.com/post/681166Wed, 04 Jan 2012 15:53:30 GMT<![CDATA[Reply to IP Science - Q&amp;A on Wed, 04 Jan 2012 05:53:53 GMT]]>

twilight:

O almost always has a valency of -2. C can be +4 or -4 but in this case, it is +4 because even in polyatomic ions there is almost always + and -. Therefore the charge of CO3 would be +4+3(-2)=-2
Similarly for NH4 (btw it's NH4. NH3 is a neutral molecule), H will be +1. -1 valency for H is usually for organic compounds. N will be +5 or -3. In this case it will be -3 due to it being H+. So charge of NH3 is -3+4(1)=+1
Thanks, Twilight! I didn't know valencies of compounds can be added like that. I always thought it should be explained in terms of electron transfer or sharing of electrons. What you had just demonstrated seems much easier to explain to my ds. :thankyou:

]]>https://forum.kiasuparents.com/post/680459https://forum.kiasuparents.com/post/680459Wed, 04 Jan 2012 05:53:53 GMT<![CDATA[Reply to IP Science - Q&amp;A on Tue, 03 Jan 2012 13:01:30 GMT]]>

Verysuperkiasu:
Ds has a chemistry question.....


He said he knows how to get valency of simple ions - like potassium K has a valency of 1+ due to its electronic configuration of 2.8.1 hence need to get rid of 1 electron.

But he doesn't know how the valency of polyatomic ions like CO3 and NH3, etc are derived. In my sec sch days, I just memorized the valencies of these polyatomic ions. Now when my ds asks me, I don't know how to explain.

Anyone can help to explain?
O almost always has a valency of -2. C can be +4 or -4 but in this case, it is +4 because even in polyatomic ions there is almost always + and -. Therefore the charge of CO3 would be +4+3(-2)=-2
Similarly for NH4 (btw it's NH4. NH3 is a neutral molecule), H will be +1. -1 valency for H is usually for organic compounds. N will be +5 or -3. In this case it will be -3 due to it being H+. So charge of NH3 is -3+4(1)=+1

]]>https://forum.kiasuparents.com/post/679668https://forum.kiasuparents.com/post/679668Tue, 03 Jan 2012 13:01:30 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sun, 01 Jan 2012 14:09:14 GMT]]>

tisha:
Verysuperkiasu:

[quote=\"tisha\"]
You are right, it is indeed in the geography book 'EARTH our home.

That's the same text book RI is using for Geog. 😄
How about Chemistry and Physics @ SJI... is it Chemistry Insights and Physics Insight (Pearson Longman) as well?

The science text books used in SJI are :
Physics Matters for GCE 'O' Level (*) Marshall Cavendish.
Chemistry Matters for GCE 'O' Level (*) Marshall Cavendish.[/quote]Then it's different then, ds is using

Physics Insights O level
& Chemistry Insights O level

But I guess they cover the same thing.

]]>https://forum.kiasuparents.com/post/678090https://forum.kiasuparents.com/post/678090Sun, 01 Jan 2012 14:09:14 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sun, 01 Jan 2012 12:48:13 GMT]]>

Verysuperkiasu:
tisha:


You are right, it is indeed in the geography book 'EARTH our home.

That's the same text book RI is using for Geog. 😄
How about Chemistry and Physics @ SJI... is it Chemistry Insights and Physics Insight (Pearson Longman) as well?

The science text books used in SJI are :
Physics Matters for GCE 'O' Level (*) Marshall Cavendish.
Chemistry Matters for GCE 'O' Level (*) Marshall Cavendish.

]]>https://forum.kiasuparents.com/post/678024https://forum.kiasuparents.com/post/678024Sun, 01 Jan 2012 12:48:13 GMT<![CDATA[Reply to IP Science - Q&amp;A on Fri, 30 Dec 2011 05:50:28 GMT]]>Ds has a chemistry question…


He said he knows how to get valency of simple ions - like potassium K has a valency of 1+ due to its electronic configuration of 2.8.1 hence need to get rid of 1 electron.

But he doesn’t know how the valency of polyatomic ions like CO3 and NH3, etc are derived. In my sec sch days, I just memorized the valencies of these polyatomic ions. Now when my ds asks me, I don’t know how to explain.

Anyone can help to explain?

]]>https://forum.kiasuparents.com/post/676619https://forum.kiasuparents.com/post/676619Fri, 30 Dec 2011 05:50:28 GMT<![CDATA[Reply to IP Science - Q&amp;A on Sun, 25 Dec 2011 15:19:59 GMT]]>[quote=\"tisha\"]

You are right, it is indeed in the geography book 'EARTH our home.
[quote]

That's the same text book RI is using for Geog. 😄
How about Chemistry and Physics @ SJI... is it Chemistry Insights and Physics Insight (Pearson Longman) as well?

]]>https://forum.kiasuparents.com/post/672595https://forum.kiasuparents.com/post/672595Sun, 25 Dec 2011 15:19:59 GMT