Q&A - PSLE Science

[Bing_He]

Dear All

Below is one of the top school science practice question.
I have use my method to get the right answer.
Please let me know for area of improvement.
Cheers

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[Bing_He]

Part 2

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[Bing_He]

Part 3

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[Bing_He]

Part 3

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[Bing_He]

Part 4

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Sorry for the lengthy post.
No used to the technology.
Thanks

[chrisu]

Hi, can help with this question? I don't think any one of the answers is correct. Pls see attached picture. Thank you.


http://img.photobucket.com/albums/v160/guppiesonli/Misc/P6-Sc.jpg\">

[andante]

chrisu:

Hi, can help with this question? I don't think any one of the answers is correct. Pls see attached picture. Thank you.


http://img.photobucket.com/albums/v160/guppiesonli/Misc/P6-Sc.jpg\">

I thought that the answer is (2).

[chrisu]

My daughter gave the same answer - (2) too.


But I think if Both Switches A and B are closed, wouldn't the Switch A caused a short circuit to the bulb besides Switch B? So only 1 bulb will be lighted up.

andante:

chrisu:

Hi, can help with this question? I don't think any one of the answers is correct. Pls see attached picture. Thank you.

http://img.photobucket.com/albums/v160/guppiesonli/Misc/P6-Sc.jpg\">

I thought that the answer is (2).

[P5G]

Please help.


http://www.orlesson.org/orp/ScienceExam.html


Question 13 - Populations of four different organisms A, B, C and D.
Worksheet answer (1). Should the correct answer be (3).


Question 21 - Substance X.
Worksheet answer (3). Should the correct answer be (2).


Question 26 - Length of spring X.
Worksheet answer (2). Should the correct answer be (4).

TIA.

[atutor2001]

P5G:

Please help.


http://www.orlesson.org/orp/ScienceExam.html


Question 13 - Populations of four different organisms A, B, C and D.
Worksheet answer (1). Should the correct answer be (3).


Question 21 - Substance X.
Worksheet answer (3). Should the correct answer be (2).


Question 26 - Length of spring X.
Worksheet answer (2). Should the correct answer be (4).

TIA.

Q13, my answer is (1) because the keyword in the question is \"thrive\"
Thrive means to grow in number. However, the number of organism C remains the same and does not \"thrive\".

Q21, my answer is (2) because oil can solidify at low temperature. Anyway, it is important to follow the question closely. It is stated in the question \"until substance X change its state\", so as long as the given item is a liquid, I will accept as a possible answer.

Q26, my answer is also (4)