SEKOLAH BERASRAMA PENUH

PEPERIKSAAN PERTENGAHAN TAHUN

SAINS

Kertas 1 dan 2

PERATURAN PEMARKAHAN

TINGKATAN 3

Kertas 1

[ 40 markah ]

Bil Jawapan Bil Jawapan Bil Jawapan Bil Jawapan1. C 11. C 21. B 31. A2. D 12. C 22. D 32. A3. B 13. A 23. A 33. B4. C 14. C 24. A 34. A5. D 15. A 25. C 35. B6. D 16. A 26. A 36. A7. A 17. D 27. D 37. C8. D 18. D 28. C 38. B9. C 19. A 29. D 38. C10. D 20. B 30. C 40. B

Section A[ 40 marks ]

Question Rubik Marks1(a) Nerve cell – carries messages around the body

Red blood cell – carries oxygen around the body

Muscle cell – to cause movement

1

1

13

(b) tongue, oesophagus, stomach, heart, small, intestine, or any organs that involved movement

1 1

(c ) Reproductive system 1 1

2(a) X – solid

Y – liquid

Z - gas

1

1

1

3

(b) P – melting

Q - sublimation

1

1 2

(c) Q – iodine crystals /naphthalene / dry ice 1 1

3(a) X 1 1

(b) To enable the water to conduct electricity 1 1

(c) (i) M – oxygen

N - hydrogen

1

12

(c) (ii) Glowing splinter reignites/ bursts into flames 1 1

(c) (iii) 1 : 2 1 1

4(a) (i) arrows

focus on retina

1

12

(a) (ii) retina 1 1

(b)(i) K – short – sightedness

L – long - sightedness

1

12

(b)(ii) 1. lens is too thick2. eyeball is too long

2 2

(b)(iii) K – concave

L - convex

1

12

5(a) Gas bubbles are released/ calcium carbonate breaks down into powder

1 1

(b)(i) Becomes cloudy / chalky / milky 1 1

(b)(ii) Carbon dioxide 1 1

(c) Calcium oxide + carbon dioxide 11

2

(d) Calcium Carbonoxygen

2 2

(e) Hissing sound / white fumes / heat released 1 1

6(a) X – kidneyY – urinary bladder

11 2

(b) Urea / nitrogenous waste water, mineral salts

111

2

(c)(i) glucose 1 1

(c)(ii) diabetes 1 1

SECTION B[20 Marks]

Question Rubik Marks7(a) R – have legs / four legs/scaly skin

S – have legs / two legs/feathers/ claws

T – have legs / four legs/ hard shell/ scaly skin

U – have legs / four legs/furry skin

V- no legs / scaly skin/fins

1

1

1

1

1

4

7(b) Refer back to (a), can use any characteristicsEx: have leg, no leg Hard shell , no hard shell

All 5 animals must be named

11

11

4

8(a)

1 1

(b) The longer the length of string the longer time to be taken for one complete swing

2

(c)(i) 1.5s 1 1

(c)(ii) To get more accurate results 1

(d) Constant variable : type of string, mass of pendulum / the numbers of swing.

Manipulated variable : length of string

1

1 3

Responding variable : time taken for 20 complete swings1

(e)(i) Transfer of Coordinate

Straight line

1

1

2

(e)(ii) Answers can be indicated on the graph or on the space provided , 2.5 s

1 1

(f) Clock / swing/ any relevant answers 1 1