Hi, has anyone has experience of applying schools when results is less than cop? If you have, what is the chances of getting in?

I was told you should take exit F (the circle line) at Serangoon MRT. About 5-10 min walk

Coinincidence not only from 1 school but 3 schools and a tuition centre. Maybe someone could interview the teachers why did they choose that partiucular ‘bee’ article for their students to practise?

Thanks to the kiasu student, Tang, atutor2001 & Tianzhu for your answers.

Hi, appreciate if you could help on the following.

http://postimage.org/image/73y2cr9g/


a) What would she observe on the inner surface of the bell jar in set-upA after one day?

b) Explain clearly your answer in (a),

c) How can she improve on her experiment to show that water vapour is lost mainly through the leaves of plants?

Thanks

Hi, will appreciate help on the following 2 questions. Thanks


Q1) Which of the following is wrongly stated?
A) Both plants and animals can move
B) Both plants and fungi cannot move
C) All plants, animals and fungi release carbon dioxide
D) Both fungi and animals depend on other living for nutrition.

1) A
2) B
3) C
4) D

Ans : 2

Reason being although plants cannot move from one place to another, they can respond by growing towards light.

I just like to confirm the above answer and explanation is correct as we always have the concept that plants cannot move.


Q2) Four painted tins were placed under the sun. A thermometer was inserted into each tin. After 30 minutes, the temperature of each tin was recorded
Tin A - painted black, Tin B - painted silver, Tin C - painted white, Tin D - painted brown
Which tin will have the lowest temperature reading?

Ans : Tin B

I thought answer should be white as white will reflect heat and will not be able to absorb heat as much as silver.

atutor2001:

Vanilla Cake:

[quote=\"leesf\"]Q3) A street-lamp is erected at an interval of 8m on one side of the street. On the other side of the street, an angsana tree is planted at every 6m. There are 12 more angsana trees than street-lamps.

a) Ho long is the street if there is one street-lamp and one angsana tree on both ends of the street.
b) How many street-lamps and angsana trees are there?

atutor2001:

Q3 The 1st common multiple of 6 & 8 is 24 (i.e. 3 gaps between 2 lamp and 4 gaps between 2 trees)
4 - 3 = 1
Therefore, for there to be 12 more trees than lamp we need to repeat this interval 12 times i.e. the 12 common multiples of 6 & 8

(a) Street length = 12 x 24 = 288m
(b) No. of trees = 5 + 11 x 4 = 49 No. of lamps = 4 + 11 x 3 = 37

(after the first group, the no. of trees & lamps is reduced by 1 because there is already a \"reference tree/lamp\" from the end of the last group\"

e.g.
x x x x)x x x)x x x) - x represents lamps
|--24-|--24-|--24-|[/u]

Lowest common multiple of 6 and 8 is 24.
24÷6=4
4+1=5
So, there are 5 angsana trees for the first 24m.

24÷8=3
3+1=4
So, there are 4 street-lamps for the first 24m.

From the above workings, you can see that there is 1 additional angsana tree for every 24m.
Since there are 12 more angsana trees than street-lamps (given in the question itself), length of the street -> 24÷1x12=288m
(a) If there is one street-lamp and one angsana tree on both ends of the street, length of street = 288m

288÷8=36
36+1=37 street-lamps.
Number of angsana trees -> 37+12=49.
(b) Numbers of street-lamps and angsana trees are 37 and 49 respectively.

Hi Vanilla Cake

Thank you for correcting my mistake. Got confused between trees and distances. Your method for finding the number of trees and lamps is so much better.

I have amended my working in red so as not to cause further confusion. Apology to anyone who got confused by me.[/quote]Thanks to Vanilla cake for clarification.

Thanks to atutor2001 and teachingmum for your solutions.

Hi, appreciate if you could help on the following questions.


http://postimage.org/image/j1m6ikhw/

Q2) Cynthia walked to the library from school and at the same time, Mrs Lee walked to school from the library. If they walked towards each other, they would meet 4 min later. If they walked in the same direction, it would take Cynthia 20min to catch up with Mrs Lee whose walking speed was 40m/min. How far was the library from the school? Assume that Mrs Lee's walking speed was constant at all times.

Q3) A street-lamp is erected at an interval of 8m on one side of the street. On the other side of the street, an angsana tree is planted at every 6m. There are 12 more angsana trees than street-lamps.
a) Ho long is the street if there is one street-lamp and one angsana tree on both ends of the street.
b) How many street-lamps and angsana trees are there?

Thanks

Thanks Vanilla cake for your solution, my child is not in the best class. He is just average.