Q&A - P3 Science

[Champion]

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.

smartmummy,

\"Clay is a naturally occurring substance. Shaping it and firing it to make the shape permanent is a human activity.\" So, if it involves the \"human-activity\" then it will be man-made than coming natural from the ground.

This my 2 cents worth of analysis; for reference and discussion purpose

[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.

[jedamum]

Champion:

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.

smartmummy,

\"Clay is a naturally occurring substance. Shaping it and firing it to make the shape permanent is a human activity.\" So, if it involves the \"human-activity\" then it will be man-made than coming natural from the ground.

This my 2 cents worth of analysis; for reference and discussion purpose

champion,
if involve human activity, then there is hardly any natural material already ah.
my definition of man-made is like plastic, where the raw materials are not natural. but for cloths and paper and glass, the raw materials are natural, hence they are natural-occurring material.

smartmummy, any specific questions you encounter?

[smartmummy]

@ jedamum

yah I have one qn in Frequency Asked Questions - Janet Sim

champ! pls help me to post the qn if possible.Thanks
chapter2—q3 page number44

Ceramic and Plastic are grouped under Man-made
Rubber and sand are grouped under Ground
Silk and Cotton are grouped under Plants
Qn. Which of the materials is/are incorrectly classified?
Answer : Rubber and silk only

[Champion]

jedamum:

my assessment book say ceramics are natural-occurring materials.

Hi jedamum,
Can advise me which assessment book you using? Might be in time to get another one to \"add on to my collection\"!

[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