Section A: Multiple Choice Questions (25 x 1= 25 marks)
Choose the correct answer for each of the following questions and click its letter (A, B, C or D) from the answer panel.
1. Which of the following objects below are examples of a system?
(A) rocks and rubber bands (B) cell phone and plant (C) plant and rubber bands (D) rocks and cell phone
2. Three Primary 4 students give their reasons whether the newspaper is a system or not.
Joe: The newspaper is a system because it is made out of many parts that work together to perform its function.
Nat: The newspaper is not a system because it is not a living thing.
Yin: The newspaper is a system even though it is not a living thing.
Which of students give(s) a correct reason?
(A) Joe only (B) Joe and Yin
(C) Nat and Joe (D) Joe, Nat and Yin
3. Which of the following are parts of the Desktop Computer system?
A. monitor C. keyboard
B. CPU D. mouse
(A) A and B (B) C and D
(C) A, B and C (D) A, B, C and D
4. Which part(s) of the car, when removed, will not allow the car to move?
(A) engine only (B) wheels only
(C) engine and wheels (D) wind screen and tail light
5. The function of the muscular system is to .
(A) take in and remove air from the body (B) break down food into simple substances (C) help different parts of the body to move
(D) carry digested food, water and oxygen to all parts of the body
6. Study the classification chart below.
Which part(s) has/have been incorrectly classified?
(A) gullet only (B) back bone only
(C) ribcage and stomach only (D) gullet and back bone only
7. Which two organ systems work together in taking air into the body and carry it to all parts of the body?
A. Digestive system B. Circulatory system C. Respiratory system D. Muscular system
(A) A and B (B) B and C
(C) B and D (D) C and D
Digestive Respiratory
Skeletal
Systems
skull ribcage
lungs gullet
stomach
back bone
8. A boy wants to carry a box into his room from the living room. He stretches his arms and bends his back to pick up the box.
Which two body systems work together to enable him to carry the box from one place to another?
A B C D
(A) A and D (B) A and C
(C) B and D (D) D and C
9. Digestion is completed in the .
(A) mouth (B) stomach (C) small intestine (D) large intestine
10. Which of the following statements is not true about digestion?
(A) Saliva softens the food to make it easier to swallow.
(B) The food in the stomach turns into a soup-like substance.
(C) More digestive juices are added into the food in the small intestine.
(D) The digested food is absorbed into the blood stream in the large intestine.
11. The small intestine is longer than the large intestine. Which of the following explains why?
A. To allow the digestive juices to completely break the food down into simple substances.
B. To transfer the undigested food into the large intestine.
C. To allow absorption of water and salt.
D. To allow the complete absorption of the digested food into the blood stream.
(A) A and B (B) A and D
(C) A, C and D (D) A, B, C and D
12. Which of the following is correct?
Parts of the plant Functions
(A) leaves absorb water and mineral salt from the ground (B) roots help the plants to stand up right
(C) stem supports the branches and the leaves (D) flower holds the plant firmly to the ground
13. Which of the following statements best describe the roots of a plant?
A. The roots grow downward into the ground.
B. The roots give out water to the ground.
C. The roots of some vines help them cling onto the support for the leaves to get more sunlight.
D. The roots absorb water and mineral salt from the ground.
(A) A and B (B) A and C
(C) A, C and D (D) A, B and C
14. How does sunlight help plants to survive?
(A) Plants get food from sunlight.
(B) Sunlight helps the plant to make food.
(C) Sunlight allows plant to stand up right.
(D) Sunlight gives plant its green colouring.
Use the information below to answer questions 15 and 16.
15. Determine the labelled parts of the plants shown above.
Part A Part B
(A) roots leaves
(B) leaves stems
(C) roots stems
(D) stems roots
16. What is the common function of parts A and B?
(A) They support the plant.
(B) They take in and give out gases.
(C) They store excess food for the plant.
(D) They absorb water and mineral salt from the ground.
17. The diagram shows a flowering plant.
Which part of the plant helps in reproduction?
18. Which of the following material(s) is/are magnetic?
A. glass marbles B. aluminium foil C. steel clip D. iron fillings
(A) A and B (B) C and D
(C) A, B and C (D) B, C and D
19. Lucy has an object. When she places it near to magnet A, they attract.
When she places it near to magnet B, they repel.
What could the object be?
(A) thumbtack (B) glue tack
(C) ruler (D) magnet
(A)
(B)
(C)
(D)
20. The diagram below shows two strong bar magnets placed near each other.
What will happen between these two magnets?
(A) The magnets will break.
(B) The magnets will repel each other.
(C) The magnets will attract each other.
(D) The magnets will stay in the same place.
21. A bar magnet that is hung freely will come to rest in the direction.
(A) North – West (B) South – East
(C) West – East (D) North – South
22. Which of the following statements are true about magnets?
A. The bigger the magnet, the stronger it is.
B. Magnets attract all kinds of metals.
C. An electromagnet is a temporary magnet.
D. When a magnet is cut into two, each piece will have a north and south pole.
(A) A and C (B) B and C
(C) C and D (D) A, C and D
23. Which part(s) of the magnet is/are the strongest?
(A) North pole only (B) South pole only
(C) North and South poles (D) all parts of the magnet
24. There are five bar magnets and two similar compasses in the setup below.
Which of the following correctly represents Compass E?
(A) (B)
(C) (D)
25. Which part of the doorstopper contains a magnet to keep the door open?
(A) A (B) B
(C) C (D) D
Section B :Open-ended Questions (15 marks) Read and understand the questions carefully.
26. A thin, long magnet is hidden inside the rubber tube around the refrigerator door.
How does it keep the refrigerator door tightly shut? Type the missing word.
The magnet around the rubber tube ____ the walls of the refrigerator.
27. Which of the following is a method to increase the strength of an electromagnet?
Type the letter only. _____
(A) Increase the number of batteries (B) Decrease the number of the batteries
(C) Increase the thickness of the magnetic material
(D) Decrease the number of coils on the magnetic material
28. Yeng wants to turn an iron nail into a magnet by stroking it with a strong bar magnet.
Which of the following are not the right ways to magnetise an iron nail?
Type the letters only. ________
A. Stroke the iron nail with the magnet using the same pole each time.
B. Stroke the iron nail with the magnet using a different pole each time.
C. Stroke the iron nail back and forth with the magnet.
D. Stroke the iron nail with the magnet in the same direction each time.
29. Study the given pictures below.
Which of the objects above does not use electromagnets to work?
Type the answer. __________
30. Below is a maglev train.
Choose True or False.
It uses electromagnets to apply the principle of levitation.
The diagram below shows a pair of shoes. Use it to answer number 31-32.
Complete the phrase below by typing the missing words.
A pair of shoes is an example of 31. _________ system. It has parts that work together to perform a 32. ________.
The diagram below shows the skeletal system. Use it to answer number 33-34.
33. One of the functions of the skeletal system is to support the body. Name one part of the plant that performs this function too.
Type the answer. ____________
34. A boy was hit by a ball on his head while he was playing basketball. Which part in the skeletal system protected him from having brain injury?
Type the answer. __________
Study the concept map below. Use it to answer number 35-36.
35. What is Part K? Type the answer.___________
36. Choose True or False.
Part K needs water and oxygen in the presence of sunlight to make food for the plant.
37. The diagram below shows a U-shaped magnet that was broken into two, Use it to answer number 37.
Choose True or False.
Part (i) of the U-shaped magnet is the North and Part (ii) is the South.
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38. An experiment was conducted using four bar magnets of different sizes hang over a basket of iron pins as shown below.
The table below shows the number of iron pins attracted to each bar magnet.
Magnet A B C D
Number of iron pins attracted 5 7 8 4
Arrange the magnets, A, B, C and D, from the strongest to the weakest.
Type the letters only. _____________
A copper bar and an iron bar are stroked several times with a bar magnet as shown below. Use them to answer number 39-40.
39. Which ends of the bars will be the North pole? Type the letter only.________
40. Type Yes of No.
The copper bar and the iron bar will be magnetised if stroke well for 100 times.
End of paper
Please review your answers well!:)
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