Q&A - P3 Science

[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]

http://i51.tinypic.com/10y00o9.jpg\">


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

[Champion]

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

:thankyou: :thankyou: Daddy Tianzhu for the explanation; appreciates much! :celebrate:

[tianzhu]

Champion:

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

Hi Champion

I browsed through two books in one of the more popular bookstores in the heartlands.

I'll try my best to recall what I’ve read.

Science 3 in 1 by Janet Sim ---- Buds grow into young plants.

Ultimate PSLE Science Guide/Upper Primary ---- These two books gave more details including a diagram of a cross section of an onion showing central bud and bud.

The central bud gives rise to young shoots. When these young shoots grow to into leaves , they photosynthesise to make food. The excess food is then transported back to the stem to grow new bulbs.

The buds will give rise to new bulbs.

Please don’t trust the memory of an old man too much.I suggest you take a look at these books yourself.

So, I think the teacher’s answer is pitched at a suitable level.

Best wishes

[Champion]

tianzhu:

Champion:

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

Hi Champion

I browsed through two books in one of the more popular bookstores in the heartlands.

I'll try my best to recall what I’ve read.

Science 3 in 1 by Janet Sim ---- Buds grow into young plants.

Ultimate PSLE Science Guide/Upper Primary ---- These two books gave more details including a diagram of a cross section of an onion showing central bud and bud.

The central bud gives rise to young shoots. When these young shoots grow to into leaves , they photosynthesise to make food. The excess food is then transported back to the stem to grow new bulbs.

The buds will give rise to new bulbs.

Please don’t trust the memory of an old man too much.I suggest you take a look at these books yourself.

So, I think the teacher’s answer is pitched at a suitable level.

Best wishes

Hi Daddy Tianzhu,
:thankyou: :thankyou: so much for your explanation; appreciates very much! :hi5:

Yup, am trying to encourage DD1 to learn the \"keywords\" for answering OE questions and guess she is beginning to grasp it well!

[smartmummy]

http://i52.tinypic.com/11lqwxt.jpg\">

I have some doubts in answering qns.Pls help me!
Answers in red are given in past papers.

Are following answers acceptable for part (a) Z instead of Material Z?
for part (b) Material Z is more transparent?

I noticed in past paper answers,they follow what mentioned in the qn.

I have some similar doubts like can we use absorb for not waterproof (waterproof mentioned in the qn)?

thanks in advance.