Q&A - P4 Science

[HAPPYH]

jedamum:

jacsplace:

My problem is that the teacher doesn't give the correct answers, just asks my dd to do the corrections. I gave her the answer to one of her worksheet questions and she got it wrong, and I didn't know how to correct it.


I have given the feedback to the teacher and she said she will try to help my dd more. But she said she only has four science lessons a week, plus teachers will change according to the topic.

you mean the teacher mark wrong and ask the kid to do corrections with no model answer? weird....
how to correct with no model answers?
change teachers according to topic? wow...i thought 1 teacher follow through..

My DD's teacher just flash the answers using the projector. Teacher should provide answers. Can ask the T

[janice_0950]

hi all I have few questions that I unable to explain. Sigh! really poor in my science:(

please kindly help me ......... scream in alarm!!

(1) why? I don't understand......
http://s417.photobucket.com/user/bin0950/media/5-9.jpg.html

(2) Real dun understand how to explain?
http://s417.photobucket.com/user/bin0950/media/4-7.jpg.html

(3)
http://s417.photobucket.com/user/bin0950/media/2-17.jpg.html

question (a) is Solid. Why? Can be answer Liquid? As both are cannot compressed.

(4)
http://s417.photobucket.com/user/bin0950/media/1-11.jpg.html
what really the answers for question (4)
sigh! really killing me...................

thousand of thank you!!!

[nicnac]

No.1 lens X and lens Y block out too much light… Total darkness. Lens w makes little difference. Lens z blocks out abt 50% of light… So it seems fair.

[janice_0950]

nicnac:

No.1 lens X and lens Y block out too much light.. Total darkness. Lens w makes little difference. Lens z blocks out abt 50% of light.. So it seems fair.

Dear nicnac,
thank you for your help again!!

:spank: OMG! another questions I still unsure + ...... :imdrowning: :?: :mad:

^^^screaming in alarm^^^

:thankyou:

[dioprem]

janice_0950:

hi all I have few questions that I unable to explain. Sigh! really poor in my science:(

please kindly help me ......... scream in alarm!!


(2) Real dun understand how to explain?
http://s417.photobucket.com/user/bin0950/media/4-7.jpg.html



thousand of thank you!!!

For the insecticide question, the \"cloud\" of insecticide is actually in the liquid state itself, much like the clouds in the sky. Only difference is the clouds in the sky are made up of tiny water droplets while those from the can are made up of droplets of insecticide. Since they are both liquid and of the same substance, their mass, state and volume must be the same.

[dioprem]

As for the last question Janice, i cannot really see the question clearly. Perhaps you could re-upload it with a higher resolution. Thank you.

[dioprem]

janice_0950:

hi all I have few questions that I unable to explain. Sigh! really poor in my science:(

please kindly help me ......... scream in alarm!!

(3)
http://s417.photobucket.com/user/bin0950/media/2-17.jpg.html

question (a) is Solid. Why? Can be answer Liquid? As both are cannot compressed.


thousand of thank you!!!

As for your third question, the answer can actually be liquid. There are some liquids that can be compressed though. Which is why solid may be the more correct answer. Although I would certainly think that liquid as an answer would be acceptable.

[jwxh]

can someone explain why more droplets are found on aluminium container than on clay container. both containers contain ice-water. it is on chapter HEAT.

[dioprem]

jwxh:

can someone explain why more droplets are found on aluminium container than on clay container. both containers contain ice-water. it is on chapter HEAT.

Aluminium, being a metal, is a better conductor of heat than clay is. So even though both containers contain ice, the temperature of aluminium would be lower than that of the clay since the aluminium would lose heat faster to the ice. So more water vapour would lose heat to the aluminium container and thus condense.

Hope this helps.

[janice_0950]

dear dioprem,

thank you so much!

Have a blessing & fun school holiday! ^_^