2011 PSLE Discussions and Strategy

[Little Brown]

zackrider:

I manage to finish the whole pp and q5 i also put carbon dioxide

i strongly disagree with your answer. by photosynthesising, oxygen is produced. but do not forget, the plant also respire. by respiring, carbon dioxide is produced. the carbon dioxide produced is used to photosynthesise. so theres this cycle here. the plant produces carbon dioxide then take in again produce again... so the answer should be water since water is needed for photosynthesis

[Intermezzo]

DD says paper was ok… she had about 30 min left for checking…


For the Shadow question her answer is Circle, because the size of the steel ball is larger than the square cardboard (according to the diagram)… she also says the same thing as some others here : If you just draw lines on the diagram, you can see.

For the Photosynthesis question her answer is Lack of carbon dioxide. According to her, the plant is placed IN water, so there should not be a lack of water.
Plants do give out carbon dioxide during respiration, but the amount of CO2 they take in for Photosynthesis is much larger than what they emit during respiration.

just hope she’s got the right answers ~

[Little Brown]

zackrider:

I manage to finish the whole pp and q5 i also put carbon dioxide

i strongly disagree with your answer. by photosynthesising, oxygen is produced. but do not forget, the plant also respire. by respiring, carbon dioxide is produced. the carbon dioxide produced is used to photosynthesise. so theres this cycle here. the plant produces carbon dioxide then take in again produce again... so the answer should be water since water is needed for photosynthesis

[chatterbox321]

Vianne77:

To all of you who say the science paper is easy, good for you.

But I think Booklet A is tricky while Booklet B is hard. Am I the only one here..?
I put my answer as 'square' and carbon dioxide for the other question. Can I ask for your answers about the 'force of gravity' question? Is it the same through-out or different?

It is same throughout! Force of gravity only changes when mass of object is different or something like dat.

[ngbrdad]

Ms tay:

xDiorama:

I put square and for the mcq booklet question 4 is carbon dioxide check le :


My ds teacher say is water is correct.

I think must look at the question as a whole.
Will there be a lack of water or a lack of CO2.

[ngbrdad]

Ms tay:

xDiorama:

I put square and for the mcq booklet question 4 is carbon dioxide check le :


My ds teacher say is water is correct.

I think must look at the question as a whole.
Will there be a lack of water or a lack of CO2.

[Vianne77]

Intermezzo:

DD says paper was ok.. she had about 30 min left for checking..


For the Shadow question her answer is Circle, because the size of the steel ball is larger than the square cardboard (according to the diagram).. she also says the same thing as some others here : If you just draw lines on the diagram, you can see.

For the Photosynthesis question her answer is Lack of carbon dioxide. According to her, the plant is placed IN water, so there should not be a lack of water.
Plants do give out carbon dioxide during respiration, but the amount of CO2 they take in for Photosynthesis is much larger than what they emit during respiration.

just hope she's got the right answers ~

*dances ecstatically* YES! Someone posts something that I am thinking of! :))

[ngbrdad]

Ms tay:

xDiorama:

I put square and for the mcq booklet question 4 is carbon dioxide check le :


My ds teacher say is water is correct.

I think must look at the question as a whole.
Will there be a lack of water or a lack of CO2.

[ProteX]

Vianne77:

To all of you who say the science paper is easy, good for you.

But I think Booklet A is tricky while Booklet B is hard. Am I the only one here..?
I put my answer as 'square' and carbon dioxide for the other question. Can I ask for your answers about the 'force of gravity' question? Is it the same through-out or different?

I thought that both were relatively manageable. But I also put square for the shadow question. It IS wrong. It is a circle. I think that it should be CO2 cos it can transpire to refill the water. Plus its rate of photosynthesis should be higher so CO2 might be deprived.

For the gravity thing, it should be the higher it is the more gravity force acting on it. (the formula is Mass x 9.8 (Gravitational ___) x Height)

[chatterbox321]

Little Brown:

zackrider:

I manage to finish the whole pp and q5 i also put carbon dioxide

i strongly disagree with your answer. by photosynthesising, oxygen is produced. but do not forget, the plant also respire. by respiring, carbon dioxide is produced. the carbon dioxide produced is used to photosynthesise. so theres this cycle here. the plant produces carbon dioxide then take in again produce again... so the answer should be water since water is needed for photosynthesis

But there was a lot of water in the beaker!!! and how can water deplete by so much(almost the whole beaker was filled at first) in just some time!!! It is illogical!! So hence i stay in my position that the and is carbon dioxide