Q&A - P3 Science

[titank]

Need help to answer these questions :siao:


(1) Why do organisms moult?

(2) What is the function of a mango seed?

(3) What is the function of the meat of the mango?

[Nebbermind]

jedamum:

Puzz...zzle:

HI Need Help !

1. Which of the following device does not contain a magnet?
1. Ez-link card
2. Compas
3. Refrigerator
4. Battery
Not sure answer is 1 or 4??

one of the uses of a magnet is to store information, so i would think that EZ-link card contain magnet.

Actually the prev floppy ezlink was magnetic but not the current generation of ezlink card which uses a smart chip system.

[atutor2001]

titank:

(1) Why do organisms moult?


(2) What is the function of a mango seed?

(3) What is the function of the meat of the mango?

(1) To allow the organism to grow because the skin does not grow.

(2) To enable the mango to reproduce so that it will not become extinct

(3) To attract animals to eat the fruit so that the animal will help to disperse the seed.

[verykiasumummy]

titank:

Need help to answer these questions :siao:


(1) Why do organisms moult?

(2) What is the function of a mango seed?

(3) What is the function of the meat of the mango?

just offering my help.

(1) Why do organisms moult?
insects moult in order to grow bigger as they are covered with exoskeleton, therefore when they grow, their skin does not stretch together so they need to shed its skin in order to grow bigger.

(2) What is the function of a mango seed?
the mango seed helps the mango plant to reproduce so that its own kind will continue to live and not extinct.

(3) What is the function of the meat of the mango?
the meat of the mango is sweet scent and it attracts animals to eat them so that their seeds can be dispersed away from the parent plant for better survival.

[Nebbermind]

For magnetic qn, i remember having to decide if a telephone has magnet. Think the old styled phone had magnet in their ringer/bell n also the spkr n mic.

But I think modern phone is electronic n even the spkr n mic is piezo type system.

So how do we know what kind of phone they talking abt?

[HAPPYH]

Nebbermind:

jedamum:

[quote=\"Puzz...zzle\"]HI Need Help !

1. Which of the following device does not contain a magnet?
1. Ez-link card
2. Compas
3. Refrigerator
4. Battery
Not sure answer is 1 or 4??

one of the uses of a magnet is to store information, so i would think that EZ-link card contain magnet.

Actually the prev floppy ezlink was magnetic but not the current generation of ezlink card which uses a smart chip system.[/quote]
Interesting...

We just follow the assessment books for answers!!??

Not sure whether they mention anything about this in the TEXTBOOK. Honestly I don't use/even flip thro' the textbook.

[verykiasumummy]

Nebbermind:

For magnetic qn, i remember having to decide if a telephone has magnet. Think the old styled phone had magnet in their ringer/bell n also the spkr n mic.

But I think modern phone is electronic n even the spkr n mic is piezo type system.

So how do we know what kind of phone they talking abt?

my dd told me 1 student in her class ask a question like this too.. (was it your idea, nebbermind)

he ask the teacher is it true that some phones have no magnets and some cooking pots are fully made of metal and yet the handles will not feel too hot while cooking. the teacher said, \"in pri sci, we learn the basic fundamentals of the natural materials. however, science is always advancing itself and we have to keep up with the technology, except that when these new technology goes into the syllabus, it confuses the children....\" i rmb this very well as i find it very well said...

[Nebbermind]

verykiasumummy:

my dd told me 1 student in her class ask a question like this too.. (was it your idea, nebbermind)

he ask the teacher is it true that some phones have no magnets and some cooking pots are fully made of metal and yet the handles will not feel too hot while cooking. the teacher said, \"in pri sci, we learn the basic fundamentals of the natural materials. however, science is always advancing itself and we have to keep up with the technology, except that when these new technology goes into the syllabus, it confuses the children....\" i rmb this very well as i find it very well said...

I was THAT student!!! :rotflmao:

[verykiasumummy]

Nebbermind:

verykiasumummy:

my dd told me 1 student in her class ask a question like this too.. (was it your idea, nebbermind)

he ask the teacher is it true that some phones have no magnets and some cooking pots are fully made of metal and yet the handles will not feel too hot while cooking. the teacher said, \"in pri sci, we learn the basic fundamentals of the natural materials. however, science is always advancing itself and we have to keep up with the technology, except that when these new technology goes into the syllabus, it confuses the children....\" i rmb this very well as i find it very well said...

I was THAT student!!! :rotflmao:

cannot be ur era la... u got split personality??

[jwxh]

plse help!

1) only the food carrying tubes was removed from the plant. the plant was still alive after a few days. Which of the following reasons best explains why the plant was able to remain alive?
a) the root was able to absorb food from the soil
b) the root was still able to absorb mineral salts from the soil
c) the root was able to absorb water for the leaf to make food
d) the leaf was able to to make food and transport it to the root.