2011 PSLE Discussions and Strategy

[Rice kiasu]

Hi,science paper bklt A Q5. rate of photosynthesis is reduced bcause lack of ___.

Is it carbon dioxide or water?My Ds put water.

[Josay]

shiwenyi:

Smurfiees:

May I ask what did the psixes put for the shadow qn ? some put square , some put circle. May I know which one is the correct one ? And yes , mcq was v.easy . booklet b got a lot of comparisons .

i am a p6 student too. i think the ans is the circle cause if u draw two straight lines from the pin hole, the light will not be blocked by the square.

My DD says is a square....

[ngbrdad]

DS called and said it’s easy.

Must probe more from him later.

[vlim]

Ds said mcq easy but booklet b a bit hard…

[Ms tay]

Rice kiasu:

Hi,science paper bklt A Q5. rate of photosynthesis is reduced bcause lack of ___.

Is it carbon dioxide or water?My Ds put water.

Ds put water too :hi5:

[Rice kiasu]

My Ds and som of classmate also put circle. Because pinhole is very small. draw light ray should be circle. :scratchhead:

[Mamo]

My DS sd not difficult but a lot of comparisons in Booklet B. Thus, a lot of writing. Managed to complete the paper in time but no time to do checking.

[TT2]

Ms tay:

shiwenyi:

[quote=\"Smurfiees\"]May I ask what did the psixes put for the shadow qn ? some put square , some put circle. May I know which one is the correct one ? And yes , mcq was v.easy . booklet b got a lot of comparisons .

i am a p6 student too. i think the ans is the circle cause if u draw two straight lines from the pin hole, the light will not be blocked by the square.

But the light rays passing thru the pinhole could go at a line parallel to the ground if the pinhole is small, then no light will shine on the screen at all, so the screen shuld be totally dark and thus the ans shuld be a square as the screen is square.[/quote]My son put circle

[Rice kiasu]

Hi Ms Tay,



:thankyou:

[vlim]

Josay:

shiwenyi:

[quote=\"Smurfiees\"]May I ask what did the psixes put for the shadow qn ? some put square , some put circle. May I know which one is the correct one ? And yes , mcq was v.easy . booklet b got a lot of comparisons .

i am a p6 student too. i think the ans is the circle cause if u draw two straight lines from the pin hole, the light will not be blocked by the square.

My DD says is a square....[/quote]Ds answer is circle..just' draw the lines'... Tts what he says.. :roll: