Q&A - P3 Science

[acforfamily]

acforfamily:

Hi,

Can someone advise whether a centipede has 6 legs or more? According to my son, teacher told him that the rest of the centipede 'legs' are actually muscles and not legs.

And if they are actually legs, are they considered insects? Insects have only 6 legs per definition for P3.

Now my son said that he was referring to a caterpillar, not centipede. :oops:

[watmekiasu]

A caterpillar is in the development cycle of a moth/butterfly. It is still considered an insect altho it has yet to reach the adult stage of an insect.

[Full.010894Cream]

Dharma:

I think the answer should be Option C (B & C only).


B – The brown gas has no definite shape. It takes up the shape of the jar.
C – The brown gas has no definite volume. It takes up the whole volume of the jar.

Now going to A – It can be compressed.
Although the brown gas can be compressed but the above experiment does not show the fact that air is being compressed. Therefore, I will not choose property A.

I guess it's a matter of whether to include A or not.
My inclusion of A is based on the fact that it has no definite volume (C). Whether its actual volume is bigger or smaller than the jar's volume, it'll still fill the jar. Therefore it can be compressed or expanded according to it container. It'd be intersting to know the given answer.

[AnnT2009]

[Moderator's note: Topics merged.]


Pls help.

Q1 Which of the following is true for all fungi?
A) They are all edible.
B) They reproduce by spores.
C) They make their own food.
D) They are found everywhere.

1) B only
2) A and B only
3) B and D only
4) A, B, C and D only

TIA.

[tony]

B only.

[AnnT2009]

Hi Tony,


Thanks for your reply, that was the same answer selected by my girl. Her school marked her wrong, answer given was (3).

I read up all reference books on my shelf but could not find any that says fungi could be found everwhere. Do you mind to explain?

TIA.

[atutor2001]

AnnT2009:

Hi Tony,


Thanks for your reply, that was the same answer selected by my girl. Her school marked her wrong, answer given was (3).

I read up all reference books on my shelf but could not find any that says fungi could be found everwhere. Do you mind to explain?

TIA.

Hi Ann

Thank you for posting this question. Fungus can be found on land, in water/sea and air. Perphaps that is what is meant by \"can be found everywhere.\" I also didn't realise this until I saw your post and googled for more information.

This forum is indeed very enlightening.

[Full.010894Cream]

perhaps school shd avoid posting answers which are vague…like in this case, how do we define ‘everywhere’? if we can find a somewhere where there’s no fungus, does it mean it’s no longer ‘everywhere’?

[atutor2001]

The problem with this question is that it involves "English" because of the word "everywhere"


The word "everywhere" can refer to only "lots of places" not necessary every single place. So the school cannot be faulted for phrasing option (D) that way.

[elkniwt]

Hi,


I am new to this site. Hope I post it correctly. (forgive my blurness)

Can I ask a qn? (P3 science) ... Is a schoolbag a system?? What about a book?? (My dd just asked me this afternoon. ) Thanks for any help.