Answer Key: Last Paper

37(c)
Water is absorbed/ removed from the undigested food.
1/2m
* Water is sucked out (0m)
38(a)
10 km
1m

38(b)
As the number of bacteria increases, it uses up oxygen to decompose, so amount of dissolved oxygen decreases making most of the fish die.

1m

39(a)
Beaker 2. They can be dissolved in water(1m) and they are not a magnetic material (1m).

2m

39(b)
S/ The magnetic material (1/2 m). Place a magnet near the surface of the dry tray until it attracts substance S. (1/2 m)

1m

40(a)
The purpose of the experiment is to find out the thermal conductivity of the three materials./ which material is the best conductor of heat.

1 m
*which material is a good conductor ( 0m)
40(b)
Copper is the best/fastest heat conductor as the time taken to reach the final temperature is the shortest.

1m

41(a)

Weight hung(g)

0
10
20
30
40

Extension of the Spring (cm)
0
5
10
15
20
1 m
½ m for each correct answer
41(b)

1m
* Points marked but no line drawn (0m)
41(c)
The heavier/greater the mass of the weights hung on the spring, the longer/greater the extension of the spring. OR
The lesser the mass of the weights hung on the spring, the lesser the extension of the spring.

1m

41(d)
Gravity/ Gravitational force
1m

42(a)
Distance the object moved from Position X.

1m
*Distance the object moved (1/2 m)
42(b)
The more the elastic band is stretched, the further the object will move from Position X. OR
The lesser the elastic band is stretched, the lesser the distance the object will move from Position X.

1m

42(c)
(Elastic) potential energy is changed to kinetic energy.

1 m

43(a)
Car C as the difference between the braking distance on a raining day and sunny day is the most / longest.

1 m

43(b)
Use tyres with more groove / pattern/ thread. OR
Change tyres to rougher tyres/ tyres with more friction.

1m
*Change new tyres (0m)
*Wheels(0m)
43(c)
Less friction / frictional force between the tyre and the road. OR
The rain water acts as lubricant between the tyre and the road.

1m

44(a)
I will put object P into beaker X carefully and object Q into beaker Y carefully. (1/2 m) I will compare the new water levels.(1/2 m)
1m


44(b)
The new water level in beaker X is higher than the new water level in beaker Y.
1m

Exam matters

Registration : 22 Feb - 03 Mar
Oral : 19 - 20 Aug
Listening : 17 Sep
Written Exam : 6 - 12 Oct

My reflections on my SA1 results...

Hi guys,

Frankly speaking, I am very disappointed with my results... I thought that I could have done better... Anyway, I will work harder for my prelims and doubly hard for my Primary School Leaving Examinations or PSLE...... And if ms zarinah asks for my target for prelims, here it is!!

English: 91++/100 (I wanna have an A*)
Maths: 100/100 (Must have a perfect score for Maths!!)
Science: 100/100 (Maybe... but it will just be my wishful thinking or what you guys call a dream that NEVER comes true.. :[ )
Mother Tongue: 85/100 (A reachable target if I work a little harder on my Chinese Language or CL!!)

So, I keep saying "work harder" but how can I work hard???

1: Do my English, Maths and Science revision papers
2: Have a scheduled plan for revision purposes (of course not for playing and enjoyment)
3: Focus on my revision (Don't do half-hearted revision... in other words..)

So that's all! I have to go now, so bye!!

Regards,
Calvin (Have a nice day!!)

My SA1 results

Hihi...although I have improved as compared to my CA1 results,it was still quite disappointing, I'll work harder to get a better result during my prelims and PSLE...must aim to have 240 marks of course by improving my language first!

Reflection for my SA1 results

Although I had improved in all my subjects except for science , I am still quite disappointed with my results . Only my maths and Chinese met my target . The rest of my subjects were quite close to my targets but i am still quite disappointed . I had decided to watch lesser TV , play lesser computer games , do more exercises and speak more fluent English at home . I shall aim to get more than 250 for PSLE :]

Reflection for sa1

Although i did not take most of the sa1,but i did it.It was extremely bad.I only met my english and chinese targets.I will continue to work hard to meet my targets by doing a lot of practices and read more story books and also play lesser computer games and watch lesser tv programmes.

Reflection

I am disappointed with my english, science and higher chinese. However, I met my targets for math and chinese. I will study harder to improve my english and science. Compared to my CA1 results, I have improved in my chinese. I hope to score better in my following exams.

Glen