Q&A - P3 Science

[HAPPYH]

Zhen:

Thx jedamum, I will drop by to take a look at the magazine.

Kindly update us about how to do you find Adventure Box or Discovery Box. My DD school also sent the form to promote these series.

[BigDevil]

DD asked me this morning...


Why are there fruits (mango, lychee) with only one seed, while others (watermelon, papaya) with many seeds?? :faint:

Only thing I could tell her is that with many seeds, there are higher chances of growth. I have no answer for single seed (but I did praise her for being inquisitive ).

What would you tell your child?

[jedamum]

BigDevil:

DD asked me this morning...


Why are there fruits (mango, lychee) with only one seed, while others (watermelon, papaya) with many seeds?? :faint:

Only thing I could tell her is that with many seeds, there are higher chances of growth. I have no answer for single seed (but I did praise her for being inquisitive ).

What would you tell your child?

bigD,
introduce you to my good friend : Dr Google :rahrah:
i did a brief googling and some fruits are big seed cos they have bigger 'energy reserves' for their only 1 seed to ensure better survival (http://forums.gardenweb.com/forums/load/botany/msg1017222226951.html).

[BigDevil]

Thanks, jedamum!


Dr Google is a good friend of mine too, but I phrased my question as
\"why mango has one seed\" (DD's original question) and couldn't find
anything. Should have generalized it to \"fruit\". :slapshead:

[jwxh]

please help

which of the following statements is true about spores?
A They are light and small
B They are only produced by fungi
C They are only found in non-flowering plants
(1)A only
(2) C only
(3)A and C only
(4)B and C only

[tianzhu]

jwxh:

please help

which of the following statements is true about spores?
A They are light and small
B They are only produced by fungi
C They are only found in non-flowering plants
(1)A only
(2) C only
(3)A and C only
(4)B and C only

Hi

Good Morning.

If I remember correctly, P3 students learned that non flowering plants like ferns are reproduced from spores. Also, mushrooms, moulds are reproduced from spores.

So, this rules out (2), (3) and (4)

The answer is (1).

Best wishes

[HAPPYH]

tianzhu:

jwxh:

please help

which of the following statements is true about spores?
A They are light and small
B They are only produced by fungi
C They are only found in non-flowering plants
(1)A only
(2) C only
(3)A and C only
(4)B and C only

Hi

Good Morning.

If I remember correctly, P3 students learned that non flowering plants like ferns are reproduced from spores. Also, mushrooms, moulds are reproduced from spores.

So, this rules out (2), (3) and (4)

The answer is (1).

Best wishes

Hmm...But P3 syllabus never taught the children that the spores are light and small, right? So my answer will be (4)B and C only.

Which one is correct??

[allcc6]

HAPPYH:

tianzhu:

[quote=\"jwxh\"]please help

which of the following statements is true about spores?
A They are light and small
B They are only produced by fungi
C They are only found in non-flowering plants
(1)A only
(2) C only
(3)A and C only
(4)B and C only

Hi

Good Morning.

If I remember correctly, P3 students learned that non flowering plants like ferns are reproduced from spores. Also, mushrooms, moulds are reproduced from spores.

So, this rules out (2), (3) and (4)

The answer is (1).

Best wishes

Hmm...But P3 syllabus never taught the children that the spores are light and small, right? So my answer will be (4)B and C only.

Which one is correct??[/quote]Tianzhu is right that both non-flowering plants and fungi reproduce by spores (covered in syllabus). Even if the children are not 'officially' taught that spores are light & small, they should arrive at answer (1) using elimination method.

[Always21]

Found this in Google


spore (spôr)
1. A usually one-celled reproductive body that can grow into a new organism without uniting with another cell. Spores are haploid (having only a single set of chromosomes). Fungi, algae, seedless plants, and certain protozoans reproduce asexually by spores. Plant spores that are dispersed by the wind have walls containing sporopollenin.

I guess the answer has to be A & C, number 3

[allcc6]

Always21:

Found this in Google


spore (spôr)
1. A usually one-celled reproductive body that can grow into a new organism without uniting with another cell. Spores are haploid (having only a single set of chromosomes). Fungi, algae, seedless plants, and certain protozoans reproduce asexually by spores. Plant spores that are dispersed by the wind have walls containing sporopollenin.

I guess the answer has to be A & C, number 3

Spores are also found in fungi (eg. gills of mushrooms).

However, option C : 'They are only found in non-flowering plants'.

Hence, how can C be true?