1. SULIT
JABATAN PELAJARAN PERAK
PEPERIKSAAN PERTENGAHAN TAHUN 2010
TINGKATAN 3
SCIENCE
Mei / Jun
2010
SCIENCE
PAPER 1 & 2
PERATURAN PEMARKAHAN
1

2. Jabatan Pelajaran Negeri Perak
Peperiksaan Selaras Pertengahan Tahun 2010
Skema Sains Kertas 1
No
soalan
Jawapan No
soalan
Jawapan No
soalan
Jawapan No
soalan
Jawapan
1 B 11 B 21 B 31 A
2 C 12 C 22 D 32 D
3 B 13 A 23 A 33 D
4 C 14 C 24 C 34 A
5 D 15 C 25 B 35 D
6 A 16 C 26 A 36 B
7 B 17 A 27 D 37 C
8 B 18 A 28 D 38 D
9 C 19 B 29 B 39 B
10 A 20 D 30 C 40 C
Skema Sains Kertas 2
2

3. Air
Pressure,
kPa
120
115
110
105
100
3
Questions Rubrics Marks
1 a (i) Q : compression
R: lever
S : beam
b. weight : compression balance/ spring balance
mass : lever balance
3 correct - 2m
2 correct, 1 wrong - 1m
1 correct , 2 wrong - 0 m
1 correct without wrong – 1 m
c. kilogram/ kg
1 each
3m
2m
1m
Total : 6m
2 a (i) from the blood capillary to the body cells
Reject: line without arrow
: sentence
(ii) diffusion
b X : higher concentration / more (than Y)
y: lower/ less concentration ( than X)
NOTE : The answer should show the comparison
c. oxyhaemoglobin
d. (i) reduce the transportation of Oxygen to the body cells.//
body cells will lack of Oxygen
(ii)use lead – free fuel/ unleaded petrols//
(catalytic) converter to the exhaust//
Car pooling// use public transport//
maintan vehicles under good condition
1m
1m
1m
Any 1
correct:
1m
Total : 6m
3 a) increase in size // increase in number of cells// increase in weight
b) Infancy/ adolenscence // teenagers
c) i. adolenscence
ii. female reach puberty faster earlier than male/
male reach puberty late than female./ female reach puberty at the age of (
11 to 14) but male reach puberty at the age of ( 14 to 16)
d. i) protein /calcium
ii) protein: build new tissue/ /formation of cell
calcium : formation of born / teeth
a. i) hydrogen
ii) lighted wooden splinter will produce ‘pop’ sound
1 m
Any -1 m
1 m
Any 1- 1
m
1m
1m
Total : 6mO
H H/