Q&A - P3 Science

[smartmummy]

jedamum:

smartmummy:

Hi All!

I have a doubt.
Is ceramics are man-made?
ceramics are made from clay. clay is natural.So how can we say ceramics are man-made.
Please help me.Thank you.

my assessment book say ceramics are natural-occurring materials.

May I know which assessment book u r using?thanks.

[smartmummy]

Anther qn in FAQ - Chapter 2- qn26 page no 58


Qn.Which of the following is/are man-made materials?
A:ceramics
B:Plastics
c:Tin
D:Wood

The answer:A and B

[jedamum]

personally, i don’t quite like that assessment book that i use. it is very brief so not value for money. but the brief notes comes in handy for quick checks such as these and they have quite good tabulation. accuracy-wise i am not sure cos i did not use it extensively. It is Casco green colour.


as for clay, i did a quick check. if you have EPH ultimate guide, the first concept map in that chapter state that clay is under natural.

[smartmummy]

jedamum:

personally, i don't quite like that assessment book that i use. it is very brief so not value for money. but the brief notes comes in handy for quick checks such as these and they have quite good tabulation. accuracy-wise i am not sure cos i did not use it extensively. It is Casco green colour.


as for clay, i did a quick check. if you have EPH ultimate guide, the first concept map in that chapter state that clay is under natural.

clay is natural.but how about ceramic?

[jedamum]

smartmummy:

jedamum:

personally, i don't quite like that assessment book that i use. it is very brief so not value for money. but the brief notes comes in handy for quick checks such as these and they have quite good tabulation. accuracy-wise i am not sure cos i did not use it extensively. It is Casco green colour.


as for clay, i did a quick check. if you have EPH ultimate guide, the first concept map in that chapter state that clay is under natural.

clay is natural.but how about ceramic?

smartmummy,
thanks for correcting me.
see, i told you i cannot recommend the green book. i found the discrepancy from my another more reliable PSLE guide :evil:.
this evil green book classify glass under Natural. then the Ultimate guide classify glass under Man-made. this other reliable PSLE guide state glass under man-made. so i go with this third guide.
stated there Ceramics are man-made.

sorry for the confusion earlier.
hope some experts can come in to explain. my ds1 not testing on Materials

[smartmummy]

Hi jedamum!

don't worry! we are here to clear our doubts.I asked in PSLE-Sci thread.The parents should be know.I got answer as follows,

Sun_2010 :

Ceramic is man made.
It may be made from clay (natural material) but it is man made

lukily,ur son don't have materials. :rahrah: :rahrah: :rahrah:

[jedamum]

smartmummy:

Hi jedamum!

don't worry! we are here to clear our doubts.I asked in PSLE-Sci thread.The parents should be know.I got answer as follows,

Sun_2010 :

Ceramic is man made.
It may be made from clay (natural material) but it is man made

lukily,ur son don't have materials. :rahrah: :rahrah: :rahrah:

thanks!

[Champion]

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Hi All,
Need your advise on the above P3 question which my DD1's Science T gives as \"standard answer\". Is the answer acceptable?

Thanks.

[Champion]

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Hi,
For the question above, (a) the answer for part X should be \"buds\" or \"central buds\"? And for (b) what is the function of part X?

Again, this is the standard answer given by Science T :scratchhead:
:thankyou:

[tianzhu]

Champion:

Need your advise on the above P3 question which my DD1's Science T gives as \"standard answer\". Is the answer acceptable?

Hi

The seed coat protects the internal of a seed during the dormancy period(before germination).

A seed coat offers protection against entry of parasites, mechanical injury and against extreme high or low temperatures. The seed coat also prevents a seed from dehydrating or drying up.

At P3 level, I think the teacher’s answer is good enough. However, you may back up your answer with some of these pointers if you want to have a more complete answer.

Best wishes