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HOTS SCIENCE ONLINE TEST 2019 UPPER PRIMARY
INSTRUCTION: Answer all 30 questions in this section.
--- QUESTION 1-10 IS 3 MARKS EACH
1. Which of the following microorganisms is used to make bread?
A. B. C.
D. E.
2. Diagram 1 shows the particles arrangement of a substance at room temperature.
Diagram 1 What is the substance?
A. Helium B. Water C. Chlorine D. Nitrogen E. Oxygen
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3. Diagram 2 shows three states of matter, P, Q and R.
Diagram 2
Which of the arrangements of particles shown below is correct?
P Q R A. B. C. D. E. P Q R
3 4. Which of the following will save energy?
P – Using LRT as a means of transport
Q – Keep the temperature of the air-conditioner at 10°C R – Use cheaper petrol
S – Sharing cars when going to work
A. P and Q B. P and R C. Q and R D. P and S E. P, R and S 5. Diagram 3 shows the human urinary system.
Diagram 3 What is the function of X?
A. Carries oxygenated blood B. Stores urine
C. Extracts waste products
D. Carries urine to the urinary bladder E. Carries deoxygenated blood
6. Diagram 4 shows the symbol of an element.
Diagram 4
What is the proton number of the element?
A. 13 B. 14 C. 27 D. 40 E. 54 X
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7. Diagram 5 shows an experiment to study the particles theory of matter.
Diagram 5
After 30 minutes, the water turns purple. What is the process occur in the experiment shown in the Diagram 6?
A. Melting B. Freezing C. Diffusion D. Evaporation E. Sedimentation
8. What substance in the cigarette will lead to lung cancer? A. Tar
B. Nicotine C. Acid D. Tobacco E. Cigarette filter
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9. Which of the interactions between the animals is correct?
A. B.
C. D.
E.
10. Which of the following statements about bacteria is not true? A. It can spread diseases
B. It is used to make antibiotic
C. It can carry out the process of photosynthesis D. It can be used to destroy toxic waste
E. It can breathe sea anemone hermit crab tentacle Parasitism kingfisher Caterpillar Commensalism mynah Buffalo Parasitism barnacle Crab Commensalism Competition
6 QUESTION 11-20 IS 4 MARKS EACH
11. Diagram 6 shows an experiment to electroplate an iron spoon with copper.
Diagram 6
Which of the following is the best solution for electrolyte M? A. Iron(II) carbonate
B. Iron(II) sulphate solution C. Copper (II) carbonate
D. Copper (II) sulphate solution E. Iron (II) chloride
12. Diagram 7 shows a type of plant X that grows on a tree.
Diagram 7 Which of the following about plant X is true? A. It grows from seed
B. It produces its own food C. It grows on living plants only
D. It grows on other tree to get sunlight E. It gets its food from the living plants
X Battery Iron spoon M solution Beaker Copper electrode
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13. Block P is pushed with the same force on different surface, W, X, Y and Z. Table 1 shows the results obtained.
Type of surface W X Y Z
Distance travelled (cm) 32 79 55 17
Table 1
Choose the correct sequence from the highest to the lowest frictional force based on the above experiment.
A. Z, Y, W, X B. W, Y, X, Z C. X, Y, W, Z D. Z, W, Y, X E. X, Y, Z, X 14. Diagram 8 shows two pots of Balsam plants, X and Y.
Diagram 8 What can you infer based on Diagram 8?
A. The plant in pot X has enough water and sunlight B. The plant in pot Y has enough water and sunlight C. The plant in pot X does not have enough air D. The competition for nutrients is more in pot X E. The grass decomposes the plant in pot X
Balsam plant
Grass
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15. Daniel placed a wooden pole in front of the house. Which of the shadow of the pole is correctly drawn at different time?
A. B.
C. D.
E.
16. Which of the following air pollution is the main cause of acid rain? A. Dust
B. Chlorofluorocarbon C. Carbon monoxide
D. Sulphur dioxide and oxides of nitrogen E. Carbon dioxide
5 pm 1 pm
3 pm 6 pm
9 17. Diagram 9 shows three types of food.
Diagram 9
Which of the following classifications of the food shown above is correct?
Carbohydrates Proteins Fats
A. Q R P
B. R P Q
C. P Q R
D. P R Q
E. Q P R
18. Diagram 10 shows a plant that can be used as traditional medicine.
Diagram 10
The stem (rhizome) is boiled with water to produce juice for drinking. What is the function of the juice?
A. To treat asthma
B. To help maintain youthfulness
C. To treat stomach aches, nausea and diarrhoea
D. To lower the blood glucose and control the blood pressure E. To lower cholesterol
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19. Which of the following shows the positions of the Sun, Moon and Earth during an eclipse of the Sun?
A.
B.
C.
D.
E.
20. Which two of the following are types of energy? I. Heat II. Friction III. Light IV. Gravity A. I & III B. II & IV C. IV
D. All of the above E. None of the above
Earth Sun Moon Earth Earth Earth Earth Sun Sun Sun Sun Moon Moon Moon Moon
11 QUESTION 21-30 IS 5 MARKS EACH
21. Diagram 10 shows two cars, X and Y with different speeds along the highway. If both cars started their trip at the same time, calculate the distance between the two cars at 10.30 am.
Diagram 10
A. 20 km B. 40 km C. 70 km D. 180 km E. 360 km 22. Diagram 11 shows the structure of chloroplast.
Diagram 11 Which of the following reactions occurs in R?
A. Carbon dioxide + Hydrogen Glucose B. Hydrogen ion + Electron Hydrogen atom C. Hydroxyl ion Hydroxyl group + Electron D. Water molecule Hydrogen ion + Hydroxyl ion E. Hydrogen ion + Electron Hydroxyl ion
took off time 8 am X Y
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23. Table 2 below shows the number of frogs and snakes in four habitats. Habitats Numbers of frogs Number of snakes
P 5 5
Q 7 1
R 6 3
S 2 4
Table 2
Which of the following bar charts represent the intensity of competitions among the snakes at different habitats is correct?
A. B. C. D. E. P Q R S habitats intensity of competitions P Q R S habitats P Q R S habitats P Q R S habitats P Q R S habitats intensity of competitions
intensity of competitions intensity of competitions
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24. Table 3 shows the mass and volume of object X, Y and Z.
Object Mass/g Volume/cm3
X 100 100
Y 30 10
Z 70 140
Table 3
Which of the following shows the correct positions of object X, Y and Z in the water.
A. B. C. D. E. X Y Z Z X Y Y X Z Z Y X Y Z X
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25. Diagram 12 shows two kids sitting on a see-saw.
Diagram 12
Kent, who weighs 45kg, sits on the see-saw 4m from the fulcrum. Calculate the distance from the fulcrum must Ahmad, who weighs 60kg, sit in order to balance Kent, using the formula below:
Effort x effort arm = load x load arm
A. 0.3 m B.1.5 m C. 3 m D. 3.5 m E. 5 m 26. Diagram 13 shows three types of constellations.
Diagram 13
Which of the following statements is true about the constellations shown above? A. All constellations can be used to show exact directions
B. All constellations are in the Solar System
C. P and Q can be seen only in the southern hemisphere D. R belongs to one of the 12 constellations in the Zodiac E. All constellations are made up of meteors
Kent (45 kg) Ahmad (60 kg)
Fulcrum
4m ?
(effort arm) (load arm)
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27. Diagram 14 shows three types of simple machines.
Diagram 14
Which of the following correctly matched with their lever systems? First class lever Second class lever Third class lever
A. R Q P
B. Q R P
C. P R Q
D. P Q R
E. Q P R
28. Diagram 15 shows a landscape.
Diagram 15
Which of the following are renewable sources of energy? A. P & Q B. P, Q & R C. Q, R & S D. P, S & T E. P, Q & T P Q R P Q R S T
16 29. Diagram 16 shows a food web.
Diagram 16 Which organisms are in the second trophic level? A. Bird, Tadpole
B. Snail, Fish
C. Bird, Fish, Small animals D. Snail, Tadpole, Small animals E. Snail, Fish, Tadpole
30. Diagram 17 shows a man standing on one leg. His weight is 720 N and the surface area of his shoe is 0.02 m2.
Diagram 17 What is the pressure exerted by the man?
A. 14.4 Pa B. 28.8 Pa C. 18 000 Pa D. 24 000 Pa E. 36 000 Pa
END OF QUESTION PAPER Snail Bird Plant Small animals Tadpole Fish
17 ANSWERS 1. C 7. C 13. D 19. E 25. C 2. A 8. B 14. D 20. A 26. D 3. A 9. D 15. D 21. C 27. B 4. D 10. C 16. D 22. A 28. E 5. B 11. D 17. E 23. A 29. D 6. A 12. E 18. C 24. C 30. E